A Carnot engine takes $3 imes 10^6 \mathrm{cal}$. of heat from a reservoir at $627^{\circ} \mathrm{C}$, and gives it to a sink at $27^{\circ} \mathrm{C}$. The work done by the engine is

Question

A Carnot engine takes $3 	imes 10^6 \mathrm{cal}$. of heat from a reservoir at $627^{\circ} \mathrm{C}$, and gives it to a sink at $27^{\circ} \mathrm{C}$. The work done by the engine is

Aicharya · Accepted Answer

$\eta=\frac{(627+273)-(273+27)}{627+273}$ $=\frac{900-300}{900}=\frac{600}{900}=\frac{2}{3}$ work $=(\eta) 	imes$ Heat $=\frac{2}{3} 	imes 3 	imes 10^6 	imes 4.2 \mathrm{~J}=8.4 	imes 10^6 \mathrm{~J}$

A Carnot engine takes $3 \times 10^6 \mathrm{cal}$. of heat from a reservoir at $627^{\circ} \mathrm{C}$,…

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