Try solving this question on Thermodynamics. 

A balloon has an initial diameter of 0.2 m. it contains a gas at a pressure of 1.1 bar. it expands as it rises through the atmosphere. at the top of its flight, its diameter is 0.4 m and the pressure of the gas is 0.7 bar. assume the pressure volume relation is linear, determine the work done by the gas. 

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M.Tech IIT(ISM) DHANBAD

WORK done by gas is 2638.9 Jules or 2.64 KJ ! Am I right sir ??

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Mechanical Engineer by education, Entrepreneur by heart. Day by day nothing is changing but when we look behind, everything is different.

Take this hint to solve faster. 

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Srry i have taken volume of sphere wrong in 1st answer is it correct

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Just tried

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