Thermal Physics A2 Flashcards
What is internal energy
The sum of the randomly distributed kinetic energies and potential energies of the particles in a body
What is the first law of thermodynamics
Energy can be transformed from one form to another, but can be neither created nor destroyed
What causes the internal energy to increase
When heat is transferred to it or work is done on it
What occurs to the thermal energy of the substance during the change of state
Stays constant as the energy produced from the breaking of bonds is equal to the energy transferred to the substance during heating
What is specific heat capacity
E=mcT
What is specific latent heat
E=ml
What is specific latent heat used for
The energy transferred while the substance changes state
What is absolute zero
-273 Celsius or 0K, where the the particles have 0 energy
What is the relationship between pressure and volume
Inverse proportion
What is the relationship between pressure and temperature
Direct proportion
What is the relationship between volume and temperature
Direct proportion
What is brownian motion
The random movement of small particulates in a fluid due to particles colliding off them
