Unit 13: Reaction Rates and Equilibrium

Front

In an exothermic reaction, the initial energy is _______________ the final energy after the reaction.

Back

higher than

Front

This reaction is _______________.

Back

exothermic

Front

The red arrow on the bottom in the image represents _______________.

Back

overall energy change

Front

The blue arrow on the top in the image represents _______________.

Back

activation energy

Front

Define exothermic reaction.

Back

A reaction that releases energy in the form of heat.

Front

Define endothermic reaction.

Back

A reaction that absorbs energy from its surroundings.

Front

What is activation energy?

Back

The minimum energy required for a chemical reaction to occur.

Front

What is the difference between activation energy and overall energy change?

Back

Activation energy is the energy needed to start a reaction, while overall energy change is the difference in energy between reactants and products.

Front

What role do catalysts play in chemical reactions?

Back

Catalysts lower the activation energy, speeding up the reaction without being consumed.

Front

What is chemical equilibrium?

Back

A state in a reversible reaction where the rates of the forward and reverse reactions are equal.