The efficiency of all reversible heat engines working between the same limits of temperature\

Question

Professor PC Thomas Classes · Answer

$\eta=\frac{\mathrm{T}_{1}-\mathrm{T}_{2}}{\mathrm{~T}_{1}}$ Efficiency depends only on $\mathrm{T}_{1}$ and $\mathrm{T}_{2}$ for all reversible engines ie. engines where there no loss of energy due to friction. Therefore all reversible engines will have the same efficiency if the values of $T_{1}$ and $T_{2}$ are the same\