Chemical Engineering - Chemical Engineering Thermodynamics - Discussion

Discussion Forum : Chemical Engineering Thermodynamics - Section 8 (Q.No. 30)
30.
Which of the following equations is obtained on combining 1st and 2nd law of thermodynamics, for a system of constant mass?
dE = Tds - PdV
dQ = CvdT + PdV
dQ = CpdT + Vdp
Tds = dE - PdV
Answer: Option
Explanation:
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Discussion:
1 comments Page 1 of 1.

Caleb said:   1 year ago
1st Law of Thermodynamics.
dE = dQ + dW.
dE = dQ - PdV.

2nd Law of Thermodynamics.
dS = dQ/T.
dQ = TdS.

By Combining 1st and 2nd Laws of Thermodynamics;
dE = TdS - PdV.

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