 
			 
			MCQOPTIONS
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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 | |