The specific heats of an ideal gas depend on its

When wet steam flows through a throttle valve and remains wet at exit

A solar energy based heat engine which receives $$80$$ $$kJ$$ of heat at $${100^ \circ }C$$ and rejects $$70$$ $$kJ$$ of heat to the ambient at $${30^ \circ }C$$ is to be designed. The thermal efficiency of the heat engine is

For reversible adiabatic compression in a steady flow process, the work transfer per unit mass is