Chapter 4 thermal energy Flashcards
what is internal energy
energy of random disordered motion and interaction between particles.
what is heat
thermal energy that transfers from one system to another
what is work
the orderly transfer of energy
what is thermal energy
the total amount of kinetic energy of the particles in a system
what is temperature
the average kinetic energy of particles moving in a thermodynamic system.
what are the three types of heat transfer
conduction
convection
radiation
what is thermal radiation
is heat transfer due to emission and absorption of energy as EM radiation. it travels at the speed of light.
what is thermal equilibrium
when two touching object reach the same temperature
what is specific heat capacity
the required heat transfer to change the temperature of one Kg by one degree K or C.
what is latent heat
the amount of energy required to be absorbed or released from a substance in order to change its state.
what is the latent heat of fusion
the value of L when a substance goes from solid to liquid.
what is the latent heat of vaporization
is the value of L when a substance goes from liquid to gas.
