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Question

When one mole of an ideal gas at 30 atm pressure and 12 L volume expands such that the final pressure becomes 15 atm and the final volume becomes 48 L. Calculate entropy change for the process. [Given that Cp = 29.1 J mol–1 K–1, R = 8.314 J mol–1 K–1 and log 2 = 0.3]

जब 30 atm दाब पर तथा 12 L आयतन वाली एक मोल आदर्श गैस इस प्रकार प्रसारित होती है कि अंतिम दाब 15 atm तथा अंतिम आयतन 48 L हो जाता है। प्रक्रम के लिए एन्ट्रॉपी परिवर्तन की गणना कीजिए। [दिया गया है कि Cp = 29.1 J mol–1 K–1, R = 8.314 J mol–1 K–1 तथा log 2 = 0.3]

A
32.45 J mol–1 K–1
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B
67.35 J mol–1 K–1
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C
25.85 J mol–1 K–1
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D
73.26 J mol–1 K–1
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Solution

The correct option is C 25.85 J mol–1 K–1

Solution

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