Question

b,375 K C) 225 K D) 405 K A) 450 K A massless piston divides a closed thermally insulated cylinder into two equal parts. One part contains 28gm of N, At this temperature, one third of molecules are dissociated into atoms and other part is evacuated. The piston is released and the gas fills the whole volume of the cylinder at temperature T Then the piston brought back to its initial position. The increase in internal energy of the gas. Neglect further dissociation of molecules during the motion of the piston 5 fficient of volume expansion of the gas is

Answer 1

1.In this question first we have to dissociate the nitrogen gas so number of moles have been changed.

2. After this compression is adiabatic process so we have calculate final temperature of gas using adiabatic process equation as done in below solution.