AP Chemistry Thou Shall Not Forget- Unit 5

Front

What is the unit for the rate constant (k) for 1st order reactions?

Back

s⁻¹

Front

If a reaction profile has a taller ‘hill’ (or activation energy), then the reaction is _____________.

Back

Slower

Front

If you quadruple the concentration and the rate quadruples, what order is this reaction?

Back

First

Front

What is the rate law for the reaction with this slow elementary step: A + A → B + B?

Back

rate = k[A]²

Front

If you double the concentration and the rate quadruples, what order is this reaction?

Back

Second

Front

Define activation energy in the context of chemical reactions.

Back

The minimum energy required for a reaction to occur.

Front

What is the difference between zero-order and first-order reactions?

Back

Zero-order reactions have a constant rate regardless of concentration; first-order reactions have a rate that depends linearly on the concentration.

Front

What does the rate law express in a chemical reaction?

Back

The relationship between the rate of a reaction and the concentration of its reactants.

Front

What is the significance of the rate constant (k) in a reaction?

Back

It indicates the speed of the reaction at a given temperature.

Front

How does temperature affect the rate of a chemical reaction?

Back

Increasing temperature generally increases the reaction rate.