Physics- Thermal HL.txt

Ideal gases cannot be liquefied, have no forces between molecules when not in contact, do not have size, obeys the ideal gas equation, and the internal energy is a function of T.

A change in which there is no exchange of thermal energy / heat between the gas and surroundings. Q=0.

A change in which the pressure changes without a change in volume. W=0.

A change in which the volume changes without a change in pressure. p=constant; V/T= constant.

A change in which the pressure and volume changes without a change in temperature. U=0.

High temperature and low pressure.

Heat cannot flow spontaneously from a material at a lower temperature to a material at a higher temperature.

Is a system property that expresses the degree of disorder in the system.

In a system a process that occurs will tend to increase the total entropy of the system.

Heat is the non-mechanical transfer of energy from a material of higher temperature to a material of a lower temperature.