Efficiency of a heat engine working on Carnot cycle between two temperature levels depends upon the
A
Two temperatures only
B
Pressure of working fluid
C
Mass of the working fluid
D
Mass and pressure both of the working fluid
Correct Answer: Two temperatures only
Efficiency of a Carnot engine is given as $$\left( {{T_1} > {T_2}} \right)\aleph = 1 - \frac{{{T_2}}}{{{T_1}}}$$So, it's solely dependent on temperatures of the reservoirs.