Its analogue for black holes contains a surface gravity over 8 pi term and gives the change in mass.
When combined with Fourier's Law, this principle yields the heat partial differential equation. Its analogue for black holes contains a surface gravity over 8 pi term and gives the change in mass. Hess' law is a consequence of this law, which was developed by James (*) Joule, and it results from the application of the law of conservation of energy to thermodynamics. For 10 points, name this law that can stated as "d U equals Q minus W," showing that change in internal energy is equal to heat transferred minus work done.
When combined with Fourier's Law, this principle yields the heat partial differential equation.
first law of thermodynamics [accept law of the conservation of energy before mentioned]