- #1

Hercuflea

- 596

- 49

## Homework Statement

I have a problem where I know P1, P2, V1, and molecular mass. I do not know total mass, final volume, temperature 1 or temperature 2, or the work. I also know that P = 40V^2 + 20

Can I reverse the W = ∫PdV equation into the form W = ∫V dP? Because I could just solve the equation for V = sqrt(P/40 - 1/2) and integrate that. Can I do this?

## Homework Equations

W = ∫PdV

## The Attempt at a Solution

Qdot - Wdot = mdot ((u2 + v^2/2 + gz2) - (u1 + v^2/2 +gz1))

no heat transfer, constant mass, no change in altitude, no velocity. The system is being compressed.