Measuring Temperature Changes

Question 1

How do you measure change in temperature in a reaction

Answer 1

Take the initial temperature and the end temperature and find the difference (take them away from each other)

Question 2

what does the temperature change depend on

Answer 2

The reagents used

Question 3

Is dissolving ammonia chloride is water endothermic or exothermic

Answer 3

Endothermic

Question 4

Dissolving Calcium chloride cases the temperature of the solution to rise - Exo or Endo Thermic?

Answer 4

Exothermic

Question 5

Are precipitation reactions exothermic or Endothermic?

Answer 5

Exothermic. Participates are insoluble solids which can sometimes form when 2 solutions are mixed.

Example: Lead(ii) nitrate solution and Potassium iodide = Lead iodide