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Find the external workdone on the system...

Find the external workdone on the system in K cal, when 12.5 k cal of heat is supplied to the system and the corresponding increasing in internal energy is 10500 J (J = 4200 J/kcal)

A

15 K cal

B

12.5 kcal

C

`-10.0` kcal

D

7.5 kcal

Text Solution

Verified by Experts

The correct Answer is:
C
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