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1. |
A system is provided with 200 cal of heat and the work done by the system on the surrounding is 40 J. Then its internal energy [Orissa PMT 2004] |
A. | Increases by 600 J |
B. | Decreases by 800 J |
C. | 1 : 9 |
D. | Decreases by 50 J |
Answer» D. Decreases by 50 J | |