P3: SHC AND SLH

Question 1

Define internal energy

Answer 1

-a measure of how much energy a substance has
-it is made up of two different stores of energy: kinetic and potential

Question 2

Define specific heat capacity

Answer 2

the amount of energy required to raise 1kg of a substance by 1°C

Question 3

SHC equation

Answer 3

SHC (J/kg°C) = energy (J) / mass (kg) x temp change (°C) (C = E/mθ)

Question 4

Define specific latent heat?

Answer 4

the amount of energy required to change the state of a substance with no temp change

Question 5

SLH equation

Answer 5

SLH (J/kg) = energy (J) / mass (kg) (L = E/m)