For the following questions answer them individually
Efficiency of a carnot engine is 75%. If the cycle direction is reversed, COP ofĀ the reversed carnot cycle is
Which of the following are intensive properties?
(1) Kinetic energy
(2) Specific enthalpy
(3) Pressure
(4) Entropy
An engine operates between temperature limits of 900 K and $$T_2$$ andĀ another between $$T_2$$ and 400 K. For both to be equally efficient, the value of $$T_2$$ willĀ be