Experiment 2

Question 1

Calorimetry

Answer 1

The science of measuring heat changes that occur in chemical or physical processes.

Question 2

Calorimeter

Answer 2

A device used for measuring the change in temperature.

Question 3

q

Answer 3

The heat of reaction (released or absorbed).

Question 4

ΔH

Answer 4

The enthalpy change.

Question 5

s

Answer 5

The specific heat of a substance (the heat necessary to raise the temperature of one gram of a substance by one degree).

Question 6

C

Answer 6

The total heat capacity of the object (s x m).

Question 7

The Heat Capacity of the Calorimeter

Answer 7

The amount of heat required to raise the temperature of the calorimeter itself by 1 degree.

Question 8

Measuring Heat Capacity of the Calorimeter

Answer 8

Determined by adding a known mass of hot water to a known mass of cold water or vice versa. The calorimeter is either going to gain or lose heat.

Question 9

Determining the Specific Heat of a Metal

Answer 9

Determined by heating a sample of the metal to a known temperature and then placing it into a calorimeter containing a known amount of cool water.

Question 10

qneut

Answer 10

The heat of neutralization.

Question 11

Experiment 2 Summary

Answer 11

1) Add a known amount of NaOH pellets to a known amount of dH2O in the calorimeter and record the temperature for 25 minutes.
2) Add a known amount of cool dH2O to a known amount of hot dH2O and record the temperature for 10 minutes.
3) Combine a known amount of HCl to a known amount of NaOH and record the temperature for 10 minutes.