The figure shows a cylindrical tube with adiabatic walls and fitted with an adiabatic separator. The separator can slide by an external mechanism. An ideal gas (γ = 1.6) is injected in two sides at equal temperature and pressure. The separator remains in equilibrium at the middle. It now slides to a new position where it divides the side 1 and side 2 of the tube in the ratio of 2:3.  The ratio of the temperature in the part 1 to part 2 for this new position?