Q.

How much work can be obtained from 100 calories of heat energy?

Moderate

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By Expert Faculty of Sri Chaitanya

100 J

420 J

42 J

4200 J

answer is 2.

(Detailed Solution Below)

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Detailed Solution

1 calorie = 4.2J∴Work done = heat obtained in calories × 4.2Jor W = 100 × 4.2 = 420 J

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