The Kinetic Molecular Theory

Front

What is the Kinetic Molecular Theory?

Back

The Kinetic Molecular Theory explains the behavior of gases in terms of particles in constant motion. It states that gas particles are far apart, move randomly, and collide elastically.

Front

What are the main assumptions of the Kinetic Molecular Theory?

Back

1. Gas particles are in constant, random motion. 2. The volume of gas particles is negligible compared to the volume of the gas. 3. There are no attractive or repulsive forces between particles. 4. Collisions between particles are elastic.

Front

What is an ideal gas?

Back

An ideal gas is a hypothetical gas that perfectly follows the Kinetic Molecular Theory, meaning it has no volume and no intermolecular forces.

Front

What is the equation for kinetic energy (KE) of a moving particle?

Back

KE = 1/2 mv², where m is mass and v is velocity.

Front

How does temperature affect the kinetic energy of gas particles?

Back

As temperature increases, the kinetic energy of gas particles increases, leading to faster movement.

Front

What is the relationship between pressure and volume in gases?

Back

According to Boyle's Law, pressure and volume are inversely related at constant temperature: P1V1 = P2V2.

Front

What is the effect of increasing the number of moles of gas on pressure?

Back

According to Avogadro's Law, increasing the number of moles of gas at constant volume and temperature increases the pressure.

Front

What is the significance of the ideal gas law?

Back

The ideal gas law (PV = nRT) relates pressure (P), volume (V), number of moles (n), gas constant (R), and temperature (T) for an ideal gas.

Front

What is the difference between real gases and ideal gases?

Back

Real gases deviate from ideal behavior due to intermolecular forces and the volume of particles, especially at high pressures and low temperatures.

Front

What happens to gas particles at absolute zero?

Back

At absolute zero (0 Kelvin), gas particles theoretically have minimum kinetic energy and are at rest.