2. A piston can slide without friction inside a horizontal cylindrical vessel, which contains an ideal mono-atomic gas. The piston and the inner surface of the cylinder are coated with a thin layer of a perfect heat insulating material. Initially, the piston in equilibrium divides the cylinder into two parts A and B, which are not necessarily equal. The temperatures of the gases in both the parts are equal. Now, the piston is held in its initial position and the gas in part A is supplied some amount of heat, then the piston is released. What will the piston do in its subsequent motion? A Thermal Physics 8.7 (a) It will execute oscillatory motion of definite amplitude. (b) It will stop somewhere to the right of its initial position after several oscillations of decreasing amplitude. (c) It will stop exactly where it had started after several oscillations of decreasing amplitude. (d) Certainly, it will execute oscillations of decreasing amplitude but the position where it will finally stop depends on the amount of heat supplied.