a cylinder containing oxygen (gamma = 1.4) is closed at the top by a 50 kg frictionless piston.the area of cross section is 100 cm^2. atm. pressure = 100Kpa. g= 10 m/s^2...the cylinder is heated slowly for some time.find the amount of heat supplied to the gas if the piston moves out through a distance of 20 cm.
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