Gases - CHEM 1127Q

This set of flashcards covers key concepts, definitions, and laws related to gases as outlined in the lecture notes for CHEM 1127Q.

What defines gas pressure?

Gas pressure is the force exerted by gas particles colliding with the surfaces of their container, measured in Pascals (Pa).

What is Boyle's Law?

Boyle's Law states that at constant temperature, the volume of a given mass of gas is inversely proportional to its pressure.

What is Charles's Law?

Charles's Law states that at constant pressure, the volume of a gas increases linearly with the temperature of the gas.

What is the Combined Gas Law?

The Combined Gas Law merges Boyle’s Law and Charles’s Law and relates pressure, volume, and temperature of a gas.

Define Avogadro's Law.

Avogadro's Law states that at constant pressure and temperature, the volume of a gas is directly proportional to the number of moles of gas.

What is the formula for the Ideal Gas Law?

The Ideal Gas Law is represented by the equation PV = nRT.

What does Dalton's Law of Partial Pressures state?

Dalton’s Law states that the total pressure exerted by a mixture of gases is the sum of the partial pressures of each gas.

How is the molar mass of a gas related to its density and other variables?

The molar mass can be derived using the equation MM = dRT/P.

What does the root mean square velocity (urms) formula represent?

The urms formula calculates the average speed of gas particles based on temperature and molar mass.

How does temperature affect the average speed of gas particles?

The average speed of gas particles increases with temperature, as average kinetic energy is directly proportional to absolute temperature.