10.3 Specific Heat Capacity Flashcards
1
Q
What is specific heat capacity?
A
The amount of energy needed to raise the temperature of 1kg of substance by 1K.
2
Q
Specific heat capacity is a …… of a material?
A
property
3
Q
Equation for specific heat capacity? What do the symbols represent?
A
λE = mcλT E = change in energy m = mass c = specific heat capacity T = change in temperature in K
4
Q
What set up can be used to determine the specific heat capacity?
A
A beaker of liquid with a circuit involving a joulemeter,power supply and an immersion heater.Also a thermometer in the liquid. Also a mass balance.
5
Q
Units of specific heat capacity?
A
J K^-1 kg^-1
6
Q
How can this set up be used to determine specific heat capacity?
A
mass balance = mass of liquid joulemeter = energy put in thermometer = temperature (change) power supply = electrical energy immersion heater = transfers electrical energy to thermal energy
7
Q
How to change from kelvin to celsius?
A
subtract 273
8
Q
How to change from celsius to kelvin?
A
add 273
