Gas Laws Flashcards

Flashcards covering various gas laws and related concepts.

What is Boyle's Law?

For a fixed amount of gas at constant temperature, the volume is inversely proportional to the pressure: P1V1 = P2V2

What is Charles' Law?

For a fixed amount of gas at constant pressure, the volume is directly proportional to the temperature: V1/T1 = V2/T2

What unit must temperature be when solving gas law equations?

Kelvin (K)

What is Gay-Lussac's Law?

For a fixed amount of gas at constant volume, the pressure is directly proportional to the temperature: P1/T1 = P2/T2

What are the different pressure units?

atm, mmHg, torr, kPa, bar

What is STP? Give the values of temperature and pressure in STP.

Standard Temperature and Pressure; Temperature = 273.15 K (0 °C), Pressure = 1 atm

What is Avogadro's Law?

Equal volumes of all gases, at the same temperature and pressure, contain the same number of molecules: V1/n1 = V2/n2

What is the combined gas law?

Combines Boyle's, Charles's, and Gay-Lussac's Laws: (P1V1)/T1 = (P2V2)/T2

What is the Ideal Gas Law? What are the different possible R values?

PV = nRT; R = 0.0821 L atm / (mol K) or 8.314 J / (mol K)

What is Dalton's Law?

The total pressure exerted by a mixture of gases is the sum of the partial pressures of each individual gas: P_total = P1 + P2 + … + Pn

What is Graham's Law?

The rate of diffusion or effusion of a gas is inversely proportional to the square root of its molar mass: rate1/rate2 = sqrt(M2/M1)