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Two moles of an ideal monoatomic gas are...

Two moles of an ideal monoatomic gas are contained in a vertical cylinder of cross sectional area `A` as shown in the figure. The piston is frictionless and has a mass m. At a certain instant a heater starts supplying heat to the gas at a constant rate `q J//s`. Find the steady velocity of the piston under isobaric condition. All the boundaries are thermally insulated.

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The correct Answer is:
`2/5q/([p_0A+mg])`
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