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Find the external work done by the syste...

Find the external work done by the system in keal, when 20 kcal of heat is supplied to the system and the increase in the internal energy is 8400J (J=4200 J//kcal)?

A

16kcal

B

18kcal

C

20kcal

D

19 kcal

Text Solution

Verified by Experts

The correct Answer is:
B
`mgh=JH`
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