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Properties of Gas and Gas Laws
The Gas Laws - As the pressure of a gas increases, the volume decreases (the temperature is constant)
- As the temperature of an enclosed gas increases, the volume increases (the pressure is constant)
- As the temperature of an enclosed gas increases, the pressure increases (the volume is constant)
Boyle’s Law - Boyle’s law states that the pressure of a fixed amount of gas at a constant temperature is inversely proportional to the volume of gas.
P1V1= P2V2 Charles’s and Gay-Lussac’s Law (Charles’s Law) - Charles’s Law states that volume of a fixed amount of gas that is maintained at constant pressure is directly proportional to the absolute temperature of gas.
Avogadro’s Law - Avogadro’s law states that at constant temperature and pressure, the volume of a gas is directly proportional to the number of moles of the gas present.
When combining the three laws into one equation, we get the ideal gas equation: PV = nRT The ideal-gas law, used to predict the behavior of gas, shows the relationship between four variables introduced in the three principles. P = Pressure
V = Volume
n = Number of moles
R = Gas constant
T = Temperature Characteristic Properties of Gas: - Gas assumes the volume and shape of its container
- Gas is very compressible
- Gas has low density, compared to liquid and solid
- Gas molecules have very free motion
Properties of Gas - Back to Chemistry Help
Gas Laws - Back to SG Learn Online
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