Sorry for being dense, but every expression I come up with using W=-p2(V2-V1) ends up having both T2 and V2 in it. Such as -((Cvdt)/p2)+V1=V2=RT2/P2 or ln(T2/T1)=-(R/Cv)*ln(V2/V1). Thus the root of my problem. Any hints on eliminating T2?
I know I can get the initial volume from the ideal gas law and since dQ=0 dU=dW and dW can be expressed as dW=-p(deltaV) or dW=(Cv/R)*(p1V1-p2V2) so either of these will give me dU. But since Cv is dependent on temperature and I don't know the final temperature since I don't know the final...
Homework Statement
1 mole of an ideal gas initially at 100° C and 10 atm is expanded adiabatically against a constant pressure of 5 atm until equilibrium is re-established. Given that the temperature dependence of the heat capacity is CV = 18.83 + 0.0209T calculate deltaU, deltaH and deltaS...