Gases & the Kinetic Theory

Front

What is the Kinetic Theory of Gases?

Back

The Kinetic Theory of Gases states that gas particles are in constant, random motion and that the temperature of a gas is directly related to the average kinetic energy of its particles.

Front

What is gas pressure?

Back

Gas pressure is the force exerted by gas particles colliding with the walls of their container, measured in atmospheres (atm) or other units.

Front

What happens to gas pressure when the number of gas particles increases?

Back

When the number of gas particles increases in a container, the gas pressure increases due to more frequent collisions with the container walls.

Front

Define elastic collision in the context of gas particles.

Back

An elastic collision is a collision between gas particles where the total kinetic energy before and after the collision remains constant.

Front

What is the relationship between temperature and the motion of gas particles?

Back

As the temperature of a gas increases, the average kinetic energy of its particles increases, leading to faster motion.

Front

What is the effect of decreasing the volume of a gas on its pressure?

Back

Decreasing the volume of a gas increases its pressure, assuming the temperature remains constant (Boyle's Law).

Front

What is the significance of absolute zero in the context of gas behavior?

Back

Absolute zero (0 Kelvin) is the theoretical temperature at which gas particles have minimum kinetic energy and are at rest.

Front

How does temperature affect gas pressure in a closed container?

Back

Increasing the temperature of a gas in a closed container increases its pressure, as the particles move faster and collide more forcefully with the walls.

Front

What is an inelastic collision?

Back

An inelastic collision is a collision where the total kinetic energy is not conserved, and some energy is transformed into other forms, such as heat.

Front

What is the ideal gas law?

Back

The ideal gas law is a mathematical relationship between pressure (P), volume (V), temperature (T), and the number of moles (n) of a gas, expressed as PV = nRT.