A cylindrical tube of uniform cross-sectional area is fitted with two air tight frictionless pistons. The piston are connected to each other by a metallic wire. Initially, the pressure of the gas is and temperature is , atmospheric pressure is also .Now, the temperature of the gas is increased to , the tension of the wire will be
Volume of the gas is constant i.e.
i.e. pressure will be doubled temperature is doubled
Let be the tension in the wire. Then, equilibrium of any one piston gives
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