1. The problem statement, all variables and given/known data A large tube filled with an ideal gas at pressure p1 and temperature T1 has a small break in it towards an envirronement at p2, with p1 much larger than p2. What is the flow rate through the hole to the outside of the tube. 2. Relevant equations pv=rT Δh+Δc2/2=δq-δl h1 + c12 = h2 + c22/2 3. The attempt at a solution The proces is adiabatic and isentropic so Δh+Δc2/2=0 Since it is a large tube it can be presumed that c1=0. Since p2 is much lower than p1 we can presume h2 = 0. Am I on the right track here?