"Heat", as used in physics, refers to heat energy - and the unit for any type of energy is the joule.
Hertz
hertz
In the SI ( Système Internationale), the unit for energy is the Joule.
Calorie
Gravitational pull is a force and is measured in Newtons, the unit of force.
The unit to express power is YOUR MOMMA
the unit used to express power is time
Hertz
There are many units that cannot be used to express a volume.There is something missing from your question to request the only unit.
Unit conversions express an amount in a different unit.
kelvin
Erg.
hertz
In the SI ( Système Internationale), the unit for energy is the Joule.
Heat is a form of energy and so the appropriate unit is a Joule.
Roentgen
Calorie