Temperature Changes- C

Question 1

What is the method?

Answer 1

Measure a set amount of reactant solution in a polystyrene cup, record its initial temperature, add the other reactant, cover, stir, then record the highest or lowest temperature reached

Question 2

Independent variable?

Answer 2

The type or concentration of the reactant solution added

Question 3

Dependent variable?

Answer 3

Maximum temperature change

Question 4

Control variable

Answer 4

Volume of the reactant solution used

Question 5

What is a possible error in the temperature changes practical?

Answer 5

Heat loss to the surroundings can result in a smaller measured temperature change

Question 6

Give one way to reduce heat loss during the practical.

Answer 6

Use a polystyrene cup with a lid for insulation

Question 7

What do you record during the temperature changes practical?

Answer 7

The highest or lowest temperature reached after mixing the solutions