AP Chemistry - Unit 5 - Thou Shall Not Forget

Front

What does the Maxwell-Boltzmann distribution represent?

Back

The Maxwell-Boltzmann distribution describes the distribution of speeds of particles in a gas, showing how many particles are moving at different speeds.

Front

Which curve in a Maxwell-Boltzmann distribution indicates the highest proportion of fast-moving particles?

Back

The curve that peaks on the right indicates the highest proportion of fast-moving particles.

Front

What is the rate law for a reaction with a slow elementary step involving two reactants of the same type?

Back

rate = k[A]^2, where A is the reactant.

Front

How does a catalyst affect the activation energy of a reaction?

Back

A catalyst provides a pathway that has a lower activation energy, speeding up the reaction.

Front

What is the relationship between kinetic energy and temperature for gas particles?

Back

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

Front

What does a second-order reaction graph look like?

Back

A second-order reaction graph typically shows a curve that indicates the concentration of reactants decreases non-linearly over time.

Front

What is activation energy?

Back

Activation energy is the minimum energy required for a chemical reaction to occur.

Front

Define a catalyst. What role does it play in a chemical reaction?

Back

A catalyst is a substance that increases the rate of a chemical reaction without being consumed, by lowering the activation energy.

Front

What is the significance of the peak in a Maxwell-Boltzmann distribution?

Back

The peak represents the most probable speed of particles in the gas.

Front

How do temperature changes affect the Maxwell-Boltzmann distribution?

Back

Increasing temperature shifts the distribution to the right, indicating more particles have higher speeds.