An ideal gas heat engine operates in Carnot cycle between $ 227^{\circ} \mathrm{C} $ and $ 127^{\circ} \mathrm{C} $. It absorbs $ 6 \times 10^{4} $ cal of heat at high temperature. Amount of heat converted to work is:

Question

An ideal gas heat engine operates in Carnot cycle between $ 227^{\circ} \mathrm{C} $ and $ 127^{\circ} \mathrm{C} $. It absorbs $ 6 \times 10^{4} $ cal of heat at high temperature. Amount of heat converted to work is:, $ 1.2 \times 10^{4} \mathrm{cal} $, $ 4.8 \times 10^{4} \mathrm{cal} $, $ 6 \times 10^{4} \mathrm{cal} $, $ 2.4 \times 10^{4} \mathrm{cal} $

MARKS App · Accepted Answer

The performance of heat engine is expressed by means of “efficiency” η which is defined as the ratio of useful work obtained from the engine to the heat supplied to it. Efficiency n cycle = W Q 1 = T 2 - T 1 T 2 = 100 500 = 0 . 2 Amount heat converted into work = n Q 2 = 0 . 2 × 6 × 1 0 4 cal = 1 . 2 × 10 4 cal

Search any question & find its solution

Looking for more such questions to practice?