Temperature, Heat, and Internal Energy
Temperature (in kelvins) is a measure of of the average kinetic energy of individual molecules.
Internal energy refers to total energy of all molecules in the object.
Heat (`Q`) refers to a transfer of energy from one object to another because of a difference in temperature.
A and B have same temperature.
B's in internal energy is 2 times larger than A's
No heat transfer between A and B.
`Q = mc∆T`