Calorimetry - Dissolving, Displacement and Neutralisation Reactions

Question 1

How do you measure the amount of energy transferred in these reactions?

Answer 1

Take the temp of the reagents, mix them and measure the temp of the solution at the end

Question 2

How do you investigate the Enthalpy change of dissolving displacement or neutralisation reactions?

Answer 2

Mix reactants in a polystyrene cup

Question 3

What is the biggest problem with energy measurements?

Answer 3

The amount of energy lost to the surroundings

Question 4

How can you reduce the amount of energy lost to the surroundings?

Answer 4

Putting the polystyrene cup into a beaker of cotton wool to give more insulation, and putting a lid on the cup to reduce energy lost by evaporation

Question 5

See apparatus set up page 62

Answer 5

Ok