A) 840 J
B) 840 erg
C) 840 W
D) 840 dyne
Correct Answer: A
Solution :
Key Idea: Work done is equal to heat supplied. Work=Heat supplied We know that 1 cal=4.2 J, therefore \[W=200\,cal\] \[W=200\times 4.2\] \[W=840\,\,J\]You need to login to perform this action.
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