Answer to Question #139857 in Chemical Engineering for Ben

Question #139857
0.05 kg of steam at 10 bar, dryness fraction 0.84, is heated reversibly in a rigid vessel until the pressure is 20 bar. Calculate the change of entropy and the heat supplied.
1
Expert's answer
2020-10-25T19:47:12-0400

Change in entropy

Cps loge(Tsup/Ts)

Cps =2.303 KJ/Kg

Tsup=4000 C, Ts=212.40C

Change in entropy

=(2.303KJ/Kg)log(400oC/212.4oC)

0.634 KJ/Kg




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