Calorimetry Flashcards
1
Q
What is calorimetry?
A
The measurement of the quantity of heat exchanged, released or absorbed during a chemical reaction.
2
Q
What are calorimeters used for? How?
A
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.
3
Q
Difference between endothermic and exothermic reactions.
A
Exo - when energy is transferred to the surrounding.
Endo - when energy is taken in from the surroundings.
4
Q
Method for calorimetry?
A
- Measure cold water in copper calorimeter
- Record starting temperature
- Heat for x minutes
- Record final temperature
5
Q
Equation for calorimetry?
A
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)
