Subjects

Chemistry

Intermolecular forces and properties

Ideal gas law

Gas law

Why Real Gases Act Differently: Fun with Kinetic Molecular Theory and Charles' Law

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Why Real Gases Act Differently: Fun with Kinetic Molecular Theory and Charles' Law

Xiuyi 🦥

@xiuyiii

204 Followers

The kinetic molecular theory (KMT) and gas laws explain how gases behave under different conditions. This comprehensive guide covers the fundamental principles of Kinetic Molecular Theory real gases differences and gas laws that govern behavior of gases temperature pressure changes.

KMT describes gases as collections of particles in constant random motion
Real gases deviate from ideal behavior due to particle volume and attractive forces
Gas laws mathematically describe relationships between temperature, pressure, and volume
Charles' Law gas volume temperature relationship shows direct proportionality at constant pressure
Combined gas laws integrate multiple variables to predict gas behavior

7/16/2023

Gas Laws
Aim: How do we describe KMT of gases? How do we describe gas
Real gases
laws?
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I. KM

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Page 1: Kinetic Molecular Theory Fundamentals

The first page introduces the fundamental principles of Kinetic Molecular Theory real gases differences. The theory consists of nine key principles that explain gas behavior at the molecular level.

Definition: Kinetic Molecular Theory (KMT) is a scientific model that explains the behavior of gases at the molecular level.

Highlight: Gas particles move in random motion and undergo completely elastic collisions, maintaining constant total kinetic energy at a given temperature.

Key principles include:

Gases consist of tiny particles (atoms/molecules)
Particles are widely separated with significant empty space
Particles move in straight-line random motion
Collisions between particles are elastic
Particle speeds vary based on mass but maintain constant average speed at specific temperatures

Vocabulary: Elastic collisions - collisions where total kinetic energy remains constant.

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Combined Gas Laws

This page covers the integration of individual gas laws into the combined gas law equation.

Definition: The combined gas law unifies Charles', Boyle's, and Gay-Lussac's laws into a single equation: P₁V₁/T₁ = P₂V₂/T₂.

Example: A detailed problem shows how to calculate new gas volume under changing temperature and pressure conditions.

Graham's Law of Diffusion is also introduced, explaining how gas diffusion rates relate to molecular mass.

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Page 3: Boyle's Law and Gay-Lussac's Law

This page details how behavior of gases temperature pressure changes through two important gas laws.

Definition: Boyle's Law states that at constant temperature, pressure is inversely proportional to volume.

Definition: Gay-Lussac's Law states that at constant volume, pressure is directly proportional to absolute temperature.

Example: For Boyle's Law, when 10.0 mL of gas changes pressure from 1.50 atm to 2.00 atm at constant temperature, the volume decreases to 7.5 mL.

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Page 2: Real vs. Ideal Gases and Charles' Law

This page explores the differences between real and ideal gases, and introduces Charles' Law gas volume temperature relationship.

Definition: Charles' Law states that at constant pressure, gas volume is directly proportional to absolute temperature.

Example: When a gas volume of 10.0 mL at 20.0°C changes to 30.0°C at constant pressure, the volume increases proportionally with temperature.

The page explains how real gases can be made to behave more like ideal gases by:

Increasing temperature
Decreasing pressure
Spreading particles further apart

View

Page 4: Combined Gas Law

The final page introduces the Combined Gas Law, which integrates Charles' Law, Boyle's Law, and Gay-Lussac's Law into a single equation.

Highlight: The Combined Gas Law allows calculations involving simultaneous changes in pressure, volume, and temperature.

Example: The page includes a problem solving example involving gas volume changes under different pressure and temperature conditions at STP (Standard Temperature and Pressure).

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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.

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

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Students use Knowunity

#1

In Education App Charts in 12 Countries

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SuSSan, iOS User

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

Subjects

Chemistry

Intermolecular forces and properties

Ideal gas law

Gas law

Why Real Gases Act Differently: Fun with Kinetic Molecular Theory and Charles' Law

Xiuyi 🦥

@xiuyiii

204 Followers

KMT describes gases as collections of particles in constant random motion
Real gases deviate from ideal behavior due to particle volume and attractive forces
Gas laws mathematically describe relationships between temperature, pressure, and volume
Charles' Law gas volume temperature relationship shows direct proportionality at constant pressure
Combined gas laws integrate multiple variables to predict gas behavior

7/16/2023

9th/10th

Chemistry

Page 1: Kinetic Molecular Theory Fundamentals

Definition: Kinetic Molecular Theory (KMT) is a scientific model that explains the behavior of gases at the molecular level.

Highlight: Gas particles move in random motion and undergo completely elastic collisions, maintaining constant total kinetic energy at a given temperature.

Key principles include:

Gases consist of tiny particles (atoms/molecules)
Particles are widely separated with significant empty space
Particles move in straight-line random motion
Collisions between particles are elastic
Particle speeds vary based on mass but maintain constant average speed at specific temperatures

Vocabulary: Elastic collisions - collisions where total kinetic energy remains constant.

Combined Gas Laws

This page covers the integration of individual gas laws into the combined gas law equation.

Definition: The combined gas law unifies Charles', Boyle's, and Gay-Lussac's laws into a single equation: P₁V₁/T₁ = P₂V₂/T₂.

Example: A detailed problem shows how to calculate new gas volume under changing temperature and pressure conditions.

Graham's Law of Diffusion is also introduced, explaining how gas diffusion rates relate to molecular mass.

Page 3: Boyle's Law and Gay-Lussac's Law

This page details how behavior of gases temperature pressure changes through two important gas laws.

Definition: Boyle's Law states that at constant temperature, pressure is inversely proportional to volume.

Definition: Gay-Lussac's Law states that at constant volume, pressure is directly proportional to absolute temperature.

Example: For Boyle's Law, when 10.0 mL of gas changes pressure from 1.50 atm to 2.00 atm at constant temperature, the volume decreases to 7.5 mL.

Page 2: Real vs. Ideal Gases and Charles' Law

This page explores the differences between real and ideal gases, and introduces Charles' Law gas volume temperature relationship.

Definition: Charles' Law states that at constant pressure, gas volume is directly proportional to absolute temperature.

Example: When a gas volume of 10.0 mL at 20.0°C changes to 30.0°C at constant pressure, the volume increases proportionally with temperature.

The page explains how real gases can be made to behave more like ideal gases by:

Increasing temperature
Decreasing pressure
Spreading particles further apart

Page 4: Combined Gas Law

The final page introduces the Combined Gas Law, which integrates Charles' Law, Boyle's Law, and Gay-Lussac's Law into a single equation.

Highlight: The Combined Gas Law allows calculations involving simultaneous changes in pressure, volume, and temperature.

Example: The page includes a problem solving example involving gas volume changes under different pressure and temperature conditions at STP (Standard Temperature and Pressure).

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.

Download in

Google Play

Download in

App Store

4.9+

Average App Rating

13 M

Students use Knowunity

#1

In Education App Charts in 12 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

Why Real Gases Act Differently: Fun with Kinetic Molecular Theory and Charles' Law

Page 1: Kinetic Molecular Theory Fundamentals

Combined Gas Laws

Page 3: Boyle's Law and Gay-Lussac's Law

Page 2: Real vs. Ideal Gases and Charles' Law

Page 4: Combined Gas Law

Similar Content

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.

4.9+

13 M

#1

950 K+

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

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

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

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

Why Real Gases Act Differently: Fun with Kinetic Molecular Theory and Charles' Law

Page 1: Kinetic Molecular Theory Fundamentals

Combined Gas Laws

Page 3: Boyle's Law and Gay-Lussac's Law

Page 2: Real vs. Ideal Gases and Charles' Law

Page 4: Combined Gas Law

Similar Content

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.

4.9+

13 M

#1

950 K+

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

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

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

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