Chemistry in the Earth System IS4T3 Review: Collision Theory

Front

What is the rate of reaction?

Back

The time it takes for a reaction to occur.

Front

What is collision theory?

Back

Molecules must collide in the correct orientation with enough energy to bond.

Front

How does temperature affect the rate of reaction?

Back

Increasing temperature increases the rate of reaction.

Front

What is the effect of increasing [C2O4-2] on reaction rate?

Back

Rate increases (quadruples) when [C2O4-2] increases (doubles); thus C2O4-2 is a second order reactant.

Front

How does surface area affect the rate of reaction?

Back

More exposed sites for reactants to collide.

Front

Define activation energy.

Back

The minimum energy required for a chemical reaction to occur.

Front

What is a catalyst?

Back

A substance that increases the rate of a reaction without being consumed.

Front

Explain the concept of reaction mechanism.

Back

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

Front

What is the difference between a reactant and a product?

Back

Reactants are substances that undergo a chemical change, while products are the substances formed as a result of the reaction.

Front

What is a zero-order reaction?

Back

A reaction where the rate is constant and independent of the concentration of the reactant.