internal energy and energy transfers

Cards (8)

what is internal energy
the energy stored by the particles
how does heating affect the energy of a substance
heating transfers energy to the substance
what two things can heating do to a substance
increase temperature and change its state
what three factors determine the temperature change of a system
mass of substance, type of material and energy inputted into the system
define specific heat capacity
the amount of energy needed to raise the temperature of 1kg of a substance by 1 degree
how does the internal energy and temperature of a substance change when a change of state occurs
internal energy will increase or decrease whereas the temperature will remain constant
define specific latent heat
the amount of energy needed to change the state of 1kg of a substnce with no change of temperature
what is specific latent heat of fusion
the energy required to change 1kg of a substance from solid state to liquid state without a change in temperature