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Hercules ..

Chemistry 101

1 week ago

An ideal gas in a cylinder is enclosed by a piston of cross-section ?. The atmospheric pressure is constant and is p0. An external force lifts the piston from a height h1 to h2, (i) isothermally. (ii)adiabatically. Find the work done by the applied force on the gas in each case. System piston is friction less and the process is reversible

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Answer

A vertical 12 -cm diameter piston-cylinder device contains an ideal gas at the ambient conditons of 1 bar and $24^{\circ} \mathrm{C} .$ Initially, the inner face of the piston is $20 \mathrm{cm}$ from the base of the cylinder. Now an external shaft connected to the piston exerts a force corresponding to a boundary work input of $0.1 \mathrm{kJ} .$ The temperature of the gas remains constant during the process. Determine ( $a$ ) the amount of heat transfer, (b) the final pressure in the cylinder, and ( $c$ ) the distance that the piston is displaced.

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Video Transcript

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