Energy

Question 1

What is an exothermic reaction?

Answer 1

A reaction in which energy is given out into the surroundings

Question 2

What is an endothermic reaction?

Answer 2

A reaction in which energy is taken in from their surroundings

Question 3

Describe the exothermic process in terms of bond breaking and bond formation

Answer 3

For exothermic reaction, the energy taken it to break the reactant bonds is less than the energy given out when the product is formed.

Question 4

What is a hydrogen fuel cell?

Answer 4

This is when hydrogen gas reacts with oxygen gas to produce electricity which can be used as a fuel.

Question 5

What is bond energy?

Answer 5

Is the energy needed to break bonds or released when same bonds form.

Question 6

What is activation energy?

Answer 6

It is the minimum energy that colliding particles must have in order to react

Question 7

Describe the endothermic process in terms of bond breaking and bond formation?

Answer 7

For endothermic reaction, the energy taken in to break the reactant bonds is more than the energy given out when product is formed.