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cns
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I am working on some basic derivations for thermodyhnamics, my book doesn't explicitly state things so I am not sure if my current assumptions are correct?
1) All state functions (U,T,P,G,A) are exact differentials AND all non-state functions are INexact differntials. So if I take the 2nd derivative, I will get the same function for M and N in the example of dz = M(x,y) + N(x,y)
2) What does my book mean when it says that the order of differentiation doesn't matter for state functions?
- what do they mean by order of differentiation? does t
3) How do I calculate (delta)Enthalpy when volume is constant? It looks like it would be qv but when it comes to bomb calorimeters my book keeps using qp?
If H = U + PV, shouldn't constant volume make H = U? for reversible and irrev?
H = q/T only pressure is constant + reversible?
Why is it that my book shows dH = dU + PdV RATHER THAN d(PV) = dU+ VdP+PdV (expanding for chainge P and V?)
Thank YOU :D
1) All state functions (U,T,P,G,A) are exact differentials AND all non-state functions are INexact differntials. So if I take the 2nd derivative, I will get the same function for M and N in the example of dz = M(x,y) + N(x,y)
2) What does my book mean when it says that the order of differentiation doesn't matter for state functions?
- what do they mean by order of differentiation? does t
3) How do I calculate (delta)Enthalpy when volume is constant? It looks like it would be qv but when it comes to bomb calorimeters my book keeps using qp?
If H = U + PV, shouldn't constant volume make H = U? for reversible and irrev?
H = q/T only pressure is constant + reversible?
Why is it that my book shows dH = dU + PdV RATHER THAN d(PV) = dU+ VdP+PdV (expanding for chainge P and V?)
Thank YOU :D
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