AP Chemistry - Unit 5 - Thou Shall Not Forget

Front

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

Back

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

Front

What does the Maxwell-Boltzmann distribution illustrate?

Back

It shows the distribution of speeds of particles in a gas, indicating that not all particles move at the same speed.

Front

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

Back

The curve with the peak on the right represents the highest proportion of particles moving the fastest.

Front

What is a catalyst?

Back

A substance that increases the rate of a chemical reaction without being consumed by providing an alternative pathway with a lower activation energy.

Front

How does a catalyst affect activation energy?

Back

A catalyst lowers the activation energy required for a reaction to occur.

Front

What is the rate law for a reaction with a slow elementary step?

Back

The rate law is determined by the slow step, and for the step A --> B + C, it is rate = k[A].

Front

What determines the rate of a reaction mechanism?

Back

The slow step of the reaction mechanism determines the overall rate of the reaction.

Front

Define activation energy.

Back

The minimum energy required for a chemical reaction to occur.

Front

What is the effect of temperature on reaction rates?

Back

Increasing the temperature generally increases the reaction rate by providing more energy to the particles.

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.