Define ‘Change in entropy’ and define ‘Clausius inequality’ for irreversible and reversible process.

Question

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Answer 1

http://www.google.com/#q=%E2%80%98Change+in+entropy%E2%80%99+

Answer 2

http://www.google.com/#q=%E2%80%98Clausius+inequality%E2%80%99+for+irreversible+and+reversible+process