Subjects

Careers

Open the App

Subjects

Honors Chemistry Unit 7 Study Guide: States of Matter & Gas Laws Answers + Quizlet & PDF

Open

7

0

user profile picture

Mira

6/20/2023

AP Chemistry

honors chem 1 unit 7 study guide (states of matter & gas laws)

Honors Chemistry Unit 7 Study Guide: States of Matter & Gas Laws Answers + Quizlet & PDF

This study guide covers key concepts in honors chemistry unit 7 on states of matter, including intermolecular forces, phase changes, and gas laws. It explores how temperature, pressure, and energy affect the states of matter and provides detailed explanations of various gas laws and their applications.

The guide emphasizes understanding intermolecular forces in solids, liquids and gases and their effects on physical properties. It also covers important topics like vapor pressure, boiling points, and phase change diagrams. For gases, it delves into the relationships between pressure, volume, and temperature as described by various gas laws.

...

6/20/2023

232

States of matter
1. ENDURING UNDERSTADINGS (1)
intermolecular forces among molecules determine their state of matter at a given temperature.

View

Intermolecular Forces and Phase Changes

This page delves deeper into the relationship between intermolecular forces and phase changes in chemistry.

Highlight: To change states of matter, intermolecular forces must be overcome.

The guide explains that during phase changes, the energy from heat is used to break apart intermolecular forces. For covalent molecules, phase changes involve overcoming these forces, while for ionic compounds, the coulombic attraction must be overcome.

Example: Covalent network solids are an exception, having high melting and boiling points despite being covalent.

The page provides information on predicting physical properties based on the strength of intermolecular forces:

  • Strong IMFs lead to high boiling points, high surface tension, high viscosity, and low vapor pressure

The guide then introduces phase change diagrams, explaining concepts such as:

  • Triple point: The temperature and pressure at which solid, liquid, and gas phases of a substance coexist in equilibrium
  • Critical point: The temperature and pressure at which two phases become indistinguishable from each other

Vocabulary: A supercritical fluid is formed at the critical point where two phases become indistinguishable.

An interesting note is made about the phase diagram of water, where the slope of the line between solid and liquid is negative, indicating that ice is less dense than water.

States of matter
1. ENDURING UNDERSTADINGS (1)
intermolecular forces among molecules determine their state of matter at a given temperature.

View

Gases and Gas Laws

This page focuses on the properties of gases and introduces various gas laws crucial for honors chemistry.

Definition: Gases have similar physical properties, and their volume, pressure, and temperature can be easily predicted using gas laws.

The guide explains that pressure results from gas molecules colliding with surfaces. It also introduces the concept of atmospheric pressure and how it varies with altitude.

Vocabulary: Vapor pressure is the pressure exerted by a vapor in equilibrium with its liquid in a closed container. When vapor pressure equals atmospheric pressure, the liquid boils.

The page emphasizes that substances can evaporate even below their boiling point, using the example of acetone's smell to illustrate this concept.

Highlight: Volatile liquids have high vapor pressures and are more likely to evaporate at room temperature.

States of matter
1. ENDURING UNDERSTADINGS (1)
intermolecular forces among molecules determine their state of matter at a given temperature.

View

Units of Pressure and Temperature in Gas Laws

This page covers the various units used in gas laws and stoichiometry in honors chemistry.

The guide provides conversions between different pressure units:

  • 1 atm = 760 torr/mmHg = 101.3 kPa

Definition: Standard Temperature and Pressure STPSTP conditions are defined as 273 K 0°C0°C and 1 atm 760torror101.3kPa760 torr or 101.3 kPa.

The page emphasizes the importance of using the Kelvin scale when working with gas law problems:

  • Kelvin = Celsius + 273

It also introduces the concept of molar volume:

  • 22.4 L/mol of gas at STP

The guide then differentiates between laws and theories in science:

  1. Laws: Often expressed mathematically, describe what will happen
  2. Theories: Explain why something happens

Highlight: Both laws and theories are based on hypotheses and can be revised, but a theory will never turn into a law.

States of matter
1. ENDURING UNDERSTADINGS (1)
intermolecular forces among molecules determine their state of matter at a given temperature.

View

Gas Laws in Detail

This final page provides a comprehensive overview of various gas laws essential for honors chemistry.

  1. Boyle's Law:

Definition: Pressure and volume of a gas are inversely related atconstanttemperatureandamountat constant temperature and amount.

Mathematical expression: P₁V₁ = P₂V₂

  1. Charles' Law:

Definition: Temperature and volume of a gas are directly related atconstantpressureandamountat constant pressure and amount.

Mathematical expression: V₁/T₁ = V₂/T₂

Highlight: Temperature must be in Kelvin for gas law calculations.

  1. Gay-Lussac's Law:

Definition: Temperature and pressure of a gas are directly related atconstantvolumeandamountat constant volume and amount.

Mathematical expression: P₁/T₁ = P₂/T₂

  1. Combined Gas Law: This law combines Boyle's, Charles', and Gay-Lussac's laws into a single equation:

P₁V₁/T₁ = P₂V₂/T₂

Example: As temperature increases, either pressure or volume orbothor both must increase to maintain the equality.

The page emphasizes the importance of using the Kelvin scale for temperature and reminds students that pressure and volume can be in any consistent units for these calculations.

Can't find what you're looking for? Explore other subjects.

Knowunity is the # 1 ranked education app in five European countries

Knowunity was a featured story by Apple and has consistently topped the app store charts within the education category in Germany, Italy, Poland, Switzerland and United Kingdom. Join Knowunity today and help millions of students around the world.

Ranked #1 Education App

Download in

Google Play

Download in

App Store

Knowunity is the # 1 ranked education app in five European countries

4.9+

Average App Rating

21 M

Students use Knowunity

#1

In Education App Charts in 17 Countries

950 K+

Students uploaded study notes

Still not sure? Look at what your fellow peers are saying...

iOS User

I love this app so much [...] I recommend Knowunity to everyone!!! I went from a C to an A with it :D

Stefan S, iOS User

The application is very simple and well designed. So far I have found what I was looking for :D

SuSSan, iOS User

Love this App ❤️, I use it basically all the time whenever I'm studying

 

AP Chemistry

232

Jun 20, 2023

5 pages

Honors Chemistry Unit 7 Study Guide: States of Matter & Gas Laws Answers + Quizlet & PDF

This study guide covers key concepts in honors chemistry unit 7 on states of matter, including intermolecular forces, phase changes, and gas laws. It explores how temperature, pressure, and energy affect the states of matter and provides... Show more

States of matter
1. ENDURING UNDERSTADINGS (1)
intermolecular forces among molecules determine their state of matter at a given temperature.

Sign up to see the contentIt's free!

Access to all documents

Improve your grades

Join milions of students

By signing up you accept Terms of Service and Privacy Policy

Intermolecular Forces and Phase Changes

This page delves deeper into the relationship between intermolecular forces and phase changes in chemistry.

Highlight: To change states of matter, intermolecular forces must be overcome.

The guide explains that during phase changes, the energy from heat is used to break apart intermolecular forces. For covalent molecules, phase changes involve overcoming these forces, while for ionic compounds, the coulombic attraction must be overcome.

Example: Covalent network solids are an exception, having high melting and boiling points despite being covalent.

The page provides information on predicting physical properties based on the strength of intermolecular forces:

  • Strong IMFs lead to high boiling points, high surface tension, high viscosity, and low vapor pressure

The guide then introduces phase change diagrams, explaining concepts such as:

  • Triple point: The temperature and pressure at which solid, liquid, and gas phases of a substance coexist in equilibrium
  • Critical point: The temperature and pressure at which two phases become indistinguishable from each other

Vocabulary: A supercritical fluid is formed at the critical point where two phases become indistinguishable.

An interesting note is made about the phase diagram of water, where the slope of the line between solid and liquid is negative, indicating that ice is less dense than water.

States of matter
1. ENDURING UNDERSTADINGS (1)
intermolecular forces among molecules determine their state of matter at a given temperature.

Sign up to see the contentIt's free!

Access to all documents

Improve your grades

Join milions of students

By signing up you accept Terms of Service and Privacy Policy

Gases and Gas Laws

This page focuses on the properties of gases and introduces various gas laws crucial for honors chemistry.

Definition: Gases have similar physical properties, and their volume, pressure, and temperature can be easily predicted using gas laws.

The guide explains that pressure results from gas molecules colliding with surfaces. It also introduces the concept of atmospheric pressure and how it varies with altitude.

Vocabulary: Vapor pressure is the pressure exerted by a vapor in equilibrium with its liquid in a closed container. When vapor pressure equals atmospheric pressure, the liquid boils.

The page emphasizes that substances can evaporate even below their boiling point, using the example of acetone's smell to illustrate this concept.

Highlight: Volatile liquids have high vapor pressures and are more likely to evaporate at room temperature.

States of matter
1. ENDURING UNDERSTADINGS (1)
intermolecular forces among molecules determine their state of matter at a given temperature.

Sign up to see the contentIt's free!

Access to all documents

Improve your grades

Join milions of students

By signing up you accept Terms of Service and Privacy Policy

Units of Pressure and Temperature in Gas Laws

This page covers the various units used in gas laws and stoichiometry in honors chemistry.

The guide provides conversions between different pressure units:

  • 1 atm = 760 torr/mmHg = 101.3 kPa

Definition: Standard Temperature and Pressure STPSTP conditions are defined as 273 K 0°C0°C and 1 atm 760torror101.3kPa760 torr or 101.3 kPa.

The page emphasizes the importance of using the Kelvin scale when working with gas law problems:

  • Kelvin = Celsius + 273

It also introduces the concept of molar volume:

  • 22.4 L/mol of gas at STP

The guide then differentiates between laws and theories in science:

  1. Laws: Often expressed mathematically, describe what will happen
  2. Theories: Explain why something happens

Highlight: Both laws and theories are based on hypotheses and can be revised, but a theory will never turn into a law.

States of matter
1. ENDURING UNDERSTADINGS (1)
intermolecular forces among molecules determine their state of matter at a given temperature.

Sign up to see the contentIt's free!

Access to all documents

Improve your grades

Join milions of students

By signing up you accept Terms of Service and Privacy Policy

Gas Laws in Detail

This final page provides a comprehensive overview of various gas laws essential for honors chemistry.

  1. Boyle's Law:

Definition: Pressure and volume of a gas are inversely related atconstanttemperatureandamountat constant temperature and amount.

Mathematical expression: P₁V₁ = P₂V₂

  1. Charles' Law:

Definition: Temperature and volume of a gas are directly related atconstantpressureandamountat constant pressure and amount.

Mathematical expression: V₁/T₁ = V₂/T₂

Highlight: Temperature must be in Kelvin for gas law calculations.

  1. Gay-Lussac's Law:

Definition: Temperature and pressure of a gas are directly related atconstantvolumeandamountat constant volume and amount.

Mathematical expression: P₁/T₁ = P₂/T₂

  1. Combined Gas Law: This law combines Boyle's, Charles', and Gay-Lussac's laws into a single equation:

P₁V₁/T₁ = P₂V₂/T₂

Example: As temperature increases, either pressure or volume orbothor both must increase to maintain the equality.

The page emphasizes the importance of using the Kelvin scale for temperature and reminds students that pressure and volume can be in any consistent units for these calculations.

States of matter
1. ENDURING UNDERSTADINGS (1)
intermolecular forces among molecules determine their state of matter at a given temperature.

Sign up to see the contentIt's free!

Access to all documents

Improve your grades

Join milions of students

By signing up you accept Terms of Service and Privacy Policy

States of Matter and Intermolecular Forces

This page introduces the fundamental concepts of states of matter and the role of intermolecular forces in determining physical properties.

Definition: Intermolecular forces IMFsIMFs are the attractions between molecules that determine a substance's state of matter at a given temperature.

The main types of intermolecular forces discussed are:

  1. Hydrogen bonding
  2. Dipole-dipole attraction
  3. Dispersion forces

These forces play a crucial role in determining various properties of substances, including:

  • Vapor pressure
  • Boiling point
  • Physical state

Vocabulary: Vapor pressure is the pressure exerted by a vapor in equilibrium with its liquid in a closed container.

The guide emphasizes that energy is required to break intermolecular forces during phase changes. It also mentions different pressure units such as atmospheres atmatm, kilopascals kPakPa, and millimeters of mercury mmHgortorrmm Hg or torr.

Highlight: Changes in pressure, temperature, or volume can cause a change in a substance's physical state.

The page then provides a detailed overview of the three states of matter:

  1. Solids: Closely packed molecules, definite volume, incompressible, lowest energy
  2. Liquids: Molecules relatively close, definite volume, takes shape of container, middle energy
  3. Gases: Molecules far apart, no definite volume, takes shape of container, compressible, highest energy

Example: Phase changes include melting solidtoliquidsolid to liquid, freezing liquidtosolidliquid to solid, vaporization liquidtogasliquid to gas, condensation gastoliquidgas to liquid, sublimation solidtogassolid to gas, and deposition gastosolidgas to solid.

The guide also touches on the concepts of temperature, pressure, and energy in relation to states of matter. It introduces the first law of thermodynamics and discusses kinetic and potential energy in the context of phase changes.

Can't find what you're looking for? Explore other subjects.

Students love us — and so will you.

4.9/5

App Store

4.8/5

Google Play

The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.

Stefan S

iOS user

This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.

Samantha Klich

Android user

Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.

Anna

iOS user

I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️

Thomas R

iOS user

Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades

Brad T

Android user

Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍

David K

iOS user

The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!

Sudenaz Ocak

Android user

In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.

Greenlight Bonnie

Android user

I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend

Aubrey

iOS user

Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀

Marco B

iOS user

THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮

Elisha

iOS user

This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!

Paul T

iOS user

The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.

Stefan S

iOS user

This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.

Samantha Klich

Android user

Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.

Anna

iOS user

I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️

Thomas R

iOS user

Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades

Brad T

Android user

Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍

David K

iOS user

The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!

Sudenaz Ocak

Android user

In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.

Greenlight Bonnie

Android user

I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend

Aubrey

iOS user

Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀

Marco B

iOS user

THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮

Elisha

iOS user

This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!

Paul T

iOS user