Calorimetry

Question 1

What is calorimetry?

Answer 1

The measurement of the quantity of heat exchanged, released or absorbed during a chemical reaction.

Question 2

What are calorimeters used for? How?

Answer 2

To find the energy content of foods by burning it and measuring the energy yields in terms of the increase in temperature, or by measuring the specific heat of a substance.

Question 3

Difference between endothermic and exothermic reactions.

Answer 3

Exo - when energy is transferred to the surrounding.

Endo - when energy is taken in from the surroundings.

Question 4

Method for calorimetry?

Answer 4

• Measure cold water in copper calorimeter
• Record starting temperature
• Heat for x minutes
• Record final temperature

Question 5

Equation for calorimetry?

Answer 5

Q = m x C x change in T
Q - heat energy
m - mass of water
C - specific heat of water
change in T - change in temperature (T2 - T1)