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A Carnot’s engine operates with an effic...

A Carnot’s engine operates with an efficiency of 40% with its sink at `27^(@)C.` With an aim to increase the efficiency to 50 %, the amount of increase in temperature of the source is……….K.

Text Solution

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The correct Answer is:
100
`eta=1 - (T_(2))/(T_(1))implies 0.4 =1 - (300)/(T_(1))therefore T _(1)=500K`
Again, `0.5=1- (300)/( 500+ Delta T _(1)) implies 0.5 = (300)/(500+ Delta T_(1))`
`implies 500+ Delta T_(1) = 600 " " Delta T_(1) =100 K`
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