3) As shown on the right, a vertical piston-cylinder assembly containing a gas is placed on a hot plate. The piston initially rests on the stops. With the onset of heating, the gas pressure increases. At what pressure, in bar, does the piston start rising? The piston moves smoothly in the cylinder and g = 9.81 m/s². Stops Patm = 1 bar Piston Gas - m = 50 kg A = 0.01 m² Hot plate

Fig: 1