Question

derivation of 1st law of thermodynamics​

Answer 1

Answer:

The first law of thermodynamics is given as ΔU = Q − W, where ΔU is the change in internal energy of a system, Q is the net heat transfer (the sum of all heat transfer into and out of the system), and W is the net work done (the sum of all work done on or by the system).

Answer 2

Answer:

According the first law of thermodynamics the heat given to a system is used to change in internal and do some work .

Explanation:

when dQ is amount of heat given toa system and dU in change in internal energy and dW is the amount of workdone .so , according to first law of thermodynamics ,dQ=dU+dW.