Chemistry Temperature Changes

Question 1

What is the aim

Answer 1

To investigate the variables that effect the temperature change in chemical reactions

Question 2

What happens when an acid reacts with an alkali

Answer 2

A neutralisation reaction occurs.

Question 3

What type of reaction are these

Answer 3

Exothermic

Question 4

Exothermic meaning

Answer 4

They release heat energy to surroundings causing an increase in temperature.

Question 5

What will you add to hydrochloric acid to measure the temperature change ( different quantities)

Answer 5

Sodium hydroxide

Question 6

What is the purpose of this practical

Answer 6

To investigate the variables that affect the temperature change in chemical reactions

Question 7

What is the purpose of adding sodium hydroxide solution

Answer 7

To neutralise the acid

Question 8

What is the purpose of placing a cup inside the beaker

Answer 8

To prevent the cup from tipping over

Question 9

Role of themometer

Answer 9

To observe the temp change

Question 10

What is the purpose of the polystyrene cup and lid

Answer 10

To prevent heat loss to the surroundings