Energy Transfer In Reactions

Question 1

What happens during a chemical reaction:

Answer 1

Old bonds are broken and new bonds are formed

Question 2

What process is bond breaking:

Answer 2

Endothermic

Question 3

What process is bond formation:

Answer 3

Exothermic

Question 4

What happens in an exoteric reaction:

Answer 4

Energy is given out

Question 5

What is an exoteric reaction (definition):

Answer 5

An exothermic reaction is one which overall gives out energy to the surroundings in the form of heat, shown by a rise in temperature

Question 6

Examples of exothermic reactions:

Answer 6

Burning fuels

Explosions

Question 7

What happens in an endothermic reaction:

Answer 7

Energy is taken in

Question 8

What is an endothermic reaction (definition):

Answer 8

An endothermic reaction is one which overall takes in edgy from the surroundings in the form of heat, shown by a fall in temperature

Question 9

Examples of an endothermic reaction:

Answer 9

Photosynthesis

Question 10

What must always be supplied to break bonds:

Answer 10

Energy