Thermal Physics -> Chapter 3 ( Gas Laws )

Briefly describe an ideal gas.

An ideal gas is a gas where the attractive forces between the gas molecules are almost negligible, and the molecules themselves hardly take up any space compared to the space taken up by the gas.

Briefly explain Boyle’s law.

For a fixed mass of gas at a constant temperature, pressure is inversely proportional to the volume or P × V = k ; P → pressure of gas, V → volume of gas, k → constant

Briefly explain Charles’ Law

For a fixed mass of gas at constant pressure, volume is directly proportional to its absolute temperature, or (V / T) = k; V → volume of gas, T → absolute temperature of gas, k → constant

Briefly explain Pressure Law.

for a fixed mass of gas at constant volume, pressure is directly proportional to its absolute temperature, or (P/T) = k ; P → pressure of gas, T → temperature of gas, k → constant.

State the formula for the Combined Gas Law.

where P₁ → initial pressure, V₁ → initial volume, T₁ → initial absolute temperature, P₂ → final pressure, V₂ → final volume, T₂ → final absolute temperature.

State the ideal gas equation.

PV = nRT; P → pressure of gas, V → volume of gas, n → number of moles in the gas, R→ universal gas constant, T → absolute temperature of the gas

Briefly explain Dalton’s Law of Partial Pressures.

If we mix several gases that don't react with each other in a closed container, the total pressure exerted by the gas mixture is the sum of the pressures each gas would exert on its own (if that gas alone was filled in that same container at the same temperature).