I am working the 6 minute solutions problem 67 and I was wondering how they derived the equation for power. I knew to use the isentropic equation with P=mdot*work. I canceled out the densities and almost ended up with their equation.
Pth = (k/k-1)*Q1*p1*[(p2/p1)^k-1/k - 1]
I don't really need...
