To determine the pressure in an 80 cubic inch tank at 0 psi being refilled from an 8000 cubic inch tank at 3600 psi, consider that the total system volume remains constant and the total mass of gas is conserved. As gas flows from the larger tank to the smaller one, the pressures in both tanks will eventually equalize. The final pressure can be calculated using the ideal gas law, factoring in the volumes and initial pressures. This process illustrates the principles of gas dynamics and pressure equilibrium. Understanding these concepts is crucial for accurate pressure calculations in gas systems.
