Unit 3 Review: Gases HONORS EDITION

Front

What are the conditions under which a gas behaves most ideally?

Back

Low pressure and high temperature favor ideal gas behavior.

Front

What is gas pressure caused by?

Back

Gas pressure is caused by gas particles colliding with surfaces.

Front

What does the Kinetic Molecular Theory of Gases state?

Back

1. Gas particles have no attractive forces between them. 2. The average kinetic energy of gas is proportional to its temperature in Kelvin. 3. Energy is not lost in elastic collisions. 4. Gases move in straight-line, random motion.

Front

What is the standard temperature used for gas equations?

Back

273 K (0 °C) is the standard temperature.

Front

What happens to the pressure of an ideal gas when the volume is increased at constant temperature?

Back

The pressure decreases.

Front

Define an ideal gas.

Back

An ideal gas is a hypothetical gas that perfectly follows the gas laws without exceptions.

Front

What is the relationship between temperature and kinetic energy in gases?

Back

The average kinetic energy of gas particles is directly proportional to the temperature measured in Kelvin.

Front

What is the significance of elastic collisions in gases?

Back

In elastic collisions, total kinetic energy is conserved; gas particles do not lose energy when they collide.

Front

How does increasing temperature affect gas pressure at constant volume?

Back

Increasing temperature increases gas pressure at constant volume.

Front

What is the ideal gas law equation?

Back

PV = nRT, where P = pressure, V = volume, n = number of moles, R = ideal gas constant, T = temperature in Kelvin.