An ideal Carnot's engine is working between two heat reservoirs which are at temperatures $\mathrm{T

Question

An ideal Carnot's engine is working between two heat reservoirs which are at temperatures $\mathrm{T}_{1}=1500^{\circ} \mathrm{C}$ and $\mathrm{T}_{2}=500^{\circ} \mathrm{C}$ respectively. The maximum improvement in efficiency of the engine can be achieved if\

Professor PC Thomas Classes · Answer

$\eta=\frac{T_{1}-T_{2}}{T_{1}}$\ $\eta$ can be improved in two ways\ 1) increase $\mathrm{T}_{1}$\ 2) decrease $\mathrm{T}_{2}$ The second one is better because when we decrease $T_{2}$ numerator increases and denominator remains the same. But when we increase $T_{1}$, numerator increases. But at the same time denominator also increases\