More Gas Laws and Vapor Pressure
Boyle's Law shows that pressure and volume have an inverse relationship - squeeze a gas into half the space, and the pressure doubles. Charles' Law reveals that volume and temperature are directly proportional - heat up a balloon and watch it expand!
The combined gas law brings everything together in one equation, letting you solve problems when multiple variables change at once. It's like having a Swiss Army knife for gas calculations.
Vapor pressure is the exact pressure needed for a liquid's evaporation and condensation to balance out. When vapor pressure equals atmospheric pressure, liquids boil - that's why water boils at lower temperatures on mountains where air pressure is lower!
Dalton's Law explains how gases in mixtures behave - each gas contributes its own pressure independently, and you just add them up to get total pressure.
Real-World Connection: Understanding vapor pressure explains why your ears pop on airplanes and why pressure cookers work so well!