Question

The temperature of reservoir of Carnot's engine
operating with an efficiency of 70% is 1000K. The
temperature of its sink is hal-2 T2 (DCE 2003]
(a) 300 K (b) 400 K (c) 500 K (d) 700 K
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Answer 1

Answer:

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Explanation:

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Option a is the correct answer : 300 K

For a carnot engine:

η=1-TL/TH,

70/100=1-TL/1000,

TL/1000=1-70/100,

TL/1000=30/100,

100TL=30000,

TL=30000/100,

TL=300K.

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