# Joint Entrance Examination/2000 Screening/Q007 Monoatomic Ideal Gas and a frictionless piston

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# Original Question by Dharav talk

Here's the question...
 A monoatomic ideal gas, initially at temperature T1 , is enclosed in a cylinder fitted with a frictionless piston. The gas is allowed to expand adiabatically to a temperature T2 by releasing the piston suddenly. If L1 and L2 are the lengths of the gas column before and after expansion respectively, then T1/T2 is given by (L1/L2)^(2/3) (L1/L2) (L2/L1) (L2/L1)^(2/3)Posted by Dharav talk 13:49, 17 August 2009 (UTC)

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