1.

A vertical closed cylinder is separated into two parts by a frictionless piston of mass m and of negligible thickness. The piston is free to move along the length of the cylinder. The length of the cylinder above the piston is l_(1), and that below the piston is l_(2), such that l_(1)gtl_(2). Each part of the cylinder contains n moles of an ideal gas at equal temeprature T. If the pistion is stationary, its mass, m, will be given by : (R is universal gas constant and g is the acceleration due to gravitey)

Answer»

`(RT)/(NG)[(l_(1)-3l_(2))/(l_(1)l_(2))]`
`(RT)/(G)[(2l_(1)+l_(2))/(l_(1)l_(2))]`
`(nRT)/(g)[(1)/(l_(2))+(1)/(l_(1))]`
`(nRT)/(g)[(l_(1)-l_(2))/(l_(1)l_(2))]`

Solution :NA


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