PS.Chem5

Front

What is activation energy?

Back

The minimum energy required for a chemical reaction to occur.

Front

What happens during condensation?

Back

The process where a gas turns into a liquid, releasing energy (exothermic).

Front

What does a reversible reaction mean?

Back

A reaction that can proceed in both forward and reverse directions.

Front

How is the rate of reaction defined?

Back

The time it takes for a reaction to occur.

Front

What effect does adding sulfur trioxide (SO3) have on a reaction?

Back

It shifts the reaction left, towards the reactants.

Front

What is the difference between exothermic and endothermic reactions?

Back

Exothermic reactions release energy, while endothermic reactions absorb energy.

Front

What is the collision theory?

Back

A theory that states that for a reaction to occur, reactant particles must collide with sufficient energy and proper orientation.

Front

What is a catalyst?

Back

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

Front

What is the significance of the symbol in a chemical equation?

Back

It indicates whether the reaction is reversible or irreversible.

Front

What is the process of vaporization?

Back

The transition of a substance from a liquid to a gas, which is an endothermic process.