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1. |
A cylinder with fixed capacity of 67.2 lit contains helium gas at STP. The amount of heat needed to raise the temperature of the gas b 20°y C is: [Given that R = 8.31 J mol-1 K-1] |
A. | 350 J |
B. | 374 J |
C. | 748 J |
D. | 700 J |
Answer» D. 700 J | |