During Cyclic Thermodynamics process the net heat supplied
to the system by the surroundings is equal to the net work
done by the system on the surroundings.
work are mutually convertible.
impossible to construct a perpetual motion machine of first
i.e. cyclic ∫dQ = cyclic ∫dW
represents the heat supplied and W represents the work done.
is not proved analytically but it is proved experimentally.