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# Gas Laws

Boyles Law, Charles Law, Gay-Lussacs Law, Ideal gas Law, Combined gas Law, Avagadros Law, Daltons Law. Resources: Modern Chemistry - Holt, Rinehart, and Winston
by

## Renee Robinson

on 15 February 2016

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#### Transcript of Gas Laws

Mrs. Robinson
BOYLE'S LAW
Relates Pressure - Volume
Inversely proportional
CHARLES'S LAW
Relates volume and Temperature (K)
Directly Proportional
GAY-LUSSAC'S LAW:
Relates Pressure and Temperature (K)
Directly Proportional
COMBINED GAS LAW
Relates Pressure Volume and Temperature
Combination of Boyle's, Charles's, and Gay-Lussac's Laws
P V = P V
1 1 2 2
V V
T T
1 2
1 2
=
P P
T T
1 2
1 2
=
Relates Volume and moles
Directly proportional
Dalton's Law
Total pressure of a mixture of gas is equal to the sum of the partial pressures of the component gases.
P
1
P
1
when gases are collected by water displacement, Dalton's law of Partial Pressure can be used to determine the pressure of the gas.
Gas collected by water displacement is never pure but mixed with water vapor
P = P + P
atm
gas
H O
2
Ideal Gas Law
relates pressure, temperature, volume, and moles
PV = nRT
R = Gas constant
given on tests
Use same pressure given in problem
Kinetic Molecular Theory of Gases
5 assumptions of the K-M theory
1. Gases consist of large numbers of tiny particles that are far apart relative to their size
2. Collisions between gas particles and between particles and container walls are elastic collisions.
3. Gas particles are in continuous, rapid, random motion. They therefore possess kinetic energy, which is energy of motion.
4. There are no forces of attraction or repulsion between gas particles
5. The average kinetic energy of gas particles depends on the temperature of the gas.
States that the volume of a fixed mass of gas varies inversely with the pressure at constant temperature
Boyle's law Explanation and application
Click on these video's to learn how Boyle's law is applied to scuba diving!
States that the volue of a fixed mass of gas at constant pressure varies directly with the Kelvin temperature.
Charle's Law Explanation and applications
Click on these videos to learn how charle's law can be applied to hot air balloons
The pressure of a fixed mass of gas at constant volume varies directly with the Kelvin temperature.
Gay-Lussac's law explanation and application