<Tr> <Td> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> </Td> </Tr> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> <P> The first law of thermodynamics is a version of the law of conservation of energy, adapted for thermodynamic systems . The law of conservation of energy states that the total energy of an isolated system is constant; energy can be transformed from one form to another, but can be neither created nor destroyed . The first law is often formulated </P> <Dl> <Dd> Δ U = Q − W . (\ displaystyle \ Delta U = Q-W .) </Dd> </Dl>

The first law of thermodynamics is equivalent to which law or principle