A 3-ft3 adiabatic rigid container is divided into two equal volumes by a thin membrane, as...

A 3-ft3 adiabatic rigid container is divided into two equal volumes by a thin membrane, as shown in Fig. P5-68E. Initially, one of these chambers is filled with air at 100 psia and 100°F while the other chamber is evacuated. Determine the internal energy change of the air when the membrane is ruptured. Also determine the final air pressure in the container.