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Entropy of steam. Calculate the entropy change of steam between states P1 = 36 bar, T1 = 250∘C and P2 = 22 bar, T2 = 400∘C by direct application of the definition of entropy. Compare with steam table values. Hint. Devise a path of constant pressure followed by a path of constant volume that connects the two states. Use tabulated values of U and H to calculate the required heat capacities.

Entropy of steam. Calculate the entropy change of steam between states P1 = 36 bar, T1 = 250∘C and P2 = 22 bar, T2 = 400∘C by direct application of the definition of entropy. Compare with steam table values. Hint. Devise a path of constant pressure followed by a path of constant volume that connects the two states. Use tabulated values of U and H to calculate the required heat capacities.

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Entropy of steam. Calculate the entropy change of steam between states P 1 = 36 bar, T 1 = 250 ∘ C and P 2 = 22 b a r , T 2 = 400 ∘ C by direct application of the definition of entropy. Compare with steam table values.
Hint. Devise a path of constant pressure followed by a path of constant volume that connects the two states. Use tabulated values of U and H to calculate the required heat capacities.

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