Consider a carnot's cycle operating between $T_1 = 500\,K$ and $T_2 = 300\,K$ producing $1\,kJ$ of mechanical work per cycle. Find the heat transferred to the engine by the reservoirs .... $J$
A$2000$
B$2500$
C$1500$
D$1000$
Medium
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B$2500$
b $\eta=1-\frac{\mathrm{T}_{2}}{\mathrm{T}_{1}}=1-\frac{300}{500}=\frac{2}{5}$
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