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Transcript of Gas Laws
Relates Pressure - Volume
Relates volume and Temperature (K)
Relates Pressure and Temperature (K)
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
Relates Volume and moles
Total pressure of a mixture of gas is equal to the sum of the partial pressures of the component gases.
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
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
Explore this website to learn more about Gay-Lussac's law and learn about applications to real life: http://chemteacher.chemeddl.org/services/chemteacher/index.php?option=com_content&view=article&id=8
The combined gas law expresses the relationship between pressure, volume and temperature of a fixed amount of gas.
States that equal volumes of gases at the same temperature and presure contain equal numbers of molecules (moles).
The ideal gas law is the mathematical relationship among pressure, volume, temperature, and the number of moles of a gas.