Physics, asked by sumonkallan1030, 1 year ago

A carnot engine having an efficiency of 1 by 10 as heat engine is used as a refrigerator if the work done on the system is 10 shows the amount of energy absorbed from the reservoir at lower temperature is

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Answered by emmguru
10
carnot Engine efficiency 

where Q2 is heat energy rejected at low temperature reservoir and Q1 heat energy absorbed at high temperature reservoir.

 

hence

coefficient of performence of refrigerator α =

In refrigerator the workdone W = Q1-Q2 and

Hence Q2 = α×W = 9×10 = 90 Joules

Answered by rchandolia10
14

just see the uploaded photo

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