Chapter 15 Temperature, Heat, and Expansion Flashcards
1
Q
Temperature
A
A measure of the average translational kinetic energy per molecule in a substance, measured in degrees Celsius or Fahrenheit or in kelvins (K).
2
Q
Absolute zero
A
The lowest possible temperature that a substance may have - the temperature at which molecules of the substance have their minimum kinetic energy.
3
Q
Heat
A
The energy that flows from a substance of higher temperature to a substance of lower temperature, commonly measured in calories or joules.
4
Q
Internal energy
A
The total of all molecular energies, kinetic plus potential, that are internal to a substance.
5
Q
Specific heat capacity
A
The quantity of heat per unit mass required to raise the temperature of a substance by 1 Celsius degree.
