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A horizontal cylinder has two sections o...

A horizontal cylinder has two sections of unequal cross - sections, in which two pistons can move freely. The pistons are joined by a string, Some gas is trapped between the pistons. If this gas is heated the pistons will

A

move to the left

B

move to the right

C

remain stationary

D

either(a) or (b) depding on the initial pressure of the gas

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