Kinetics Review

Front

What is the rate law for a reaction with a second-order dependence on reactant X?

Back

rate = k[X]^2

Front

What does reaction rate refer to?

Back

Speed of reaction

Front

How are the exponents in a rate law determined?

Back

By experiment

Front

What effect does increasing the temperature have on a chemical reaction?

Back

Increases the number of collisions per second, increases the speed of reaction, can increase the pressure of reactants, all of the above

Front

What is an intermediate in a chemical reaction?

Back

Something created in an early step that is used later on

Front

Define the term 'reaction mechanism'.

Back

The step-by-step sequence of elementary reactions by which overall chemical change occurs.

Front

What is the role of a catalyst in a chemical reaction?

Back

To increase the reaction rate without being consumed in the process.

Front

What is activation energy?

Back

The minimum energy required for a chemical reaction to occur.

Front

Explain the concept of collision theory.

Back

For a reaction to occur, reactant particles must collide with sufficient energy and proper orientation.

Front

What is the effect of concentration on reaction rate?

Back

Increasing concentration generally increases the reaction rate.