Change in thermal energy (Practical 1) Flashcards
1
Q
how do we calculate amount of energy stored or released from a system as temp changes
A
change in E = mcchange in T
2
Q
what is T
A
temperature
3
Q
what is C
A
specific heat capacity
4
Q
how do you define specific heat capacity
A
the amount of energy to raise the temperature of 1KG of the substance by 1 degree.
5
Q
how is E (joules) calculated during practical
A
V * I = P= E
6
Q
What do heating and cooling graphs show on plateaus
A
changes of state where energy is being used to break forces of attraction (heat graph)
7
Q
What are the plateaus linked to
A
specific latent heat
8
Q
What are the upward gradients linked to
A
specific heat capacity
