Q: A thermally insulated container is divided into two parts by a screen. In one part the pressure and temperature are P and T for an ideal gas filled. In the second part it is vacuum. If now a small hole is created in the screen, then the temperature of the gas will
(c) remain same
(d) none of the above
Sol: Applying Ideal gas Equation, PV = nRT . Since there is a change in volume slowly , hence the process is isothermal . To compensate this change in volume , there will be change in Pressure of the gas . Therefore temperature remain constant .