1. 3 moles of CO2 gas in a closed expandable container undergoes the change in its temperature and volume from initial state (Ti, Vi) = (300 K, 2.5 L) to final state (Tr, V:) = (390 K, 7.5 L). Calculate AS, the change in entropy of the system. Assume ideal gas behavior and Cy,m= 2.5R molar heat capacity at constant volume for CO2.

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