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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
- IIT JAM
- Physics (PH)
Thermodynamic potential
Solve the following problems in the question 1 explain the method of finding entropy 2 to find enthalpy why integration is there moreover how Cp comes thire after integration 3 point ii G(T,P) in detail i am posting this question again bcz posted answer is not opening
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Abhishek singh Best Answer
Entropy is a function of Internal energy and volume. do the following steps: ( 1) take change of entropy (2) then we know that dS=(dQ)/T =(dU+PdV)/T, from this we get dS/dU (at constant V)=1/T and dS/dV(at constant internal energy)= P/T. (3) put these values in step 1 (4) by adding and subtracting VdP and SdT , we get G(as G= U+PV-TS) (5) then change of G with respect to temperature keeping P constant is equal to negative of entropy. Cp=T(dS/dT) at constant P, from this we get Cp in the integration of H.