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T7B9: Ideal Gas Law Changing Volume An ideal gas with an initial pressure of 17o kPa is confined to a cylinder with a volume of 180 cm3. We then allow it to slowly expand to a volume of 360 cm3 while adding enough heat to keep its pressure fixed. What is the work that flows into or out of the gas? (Be sure to give the correct sign as well as magnitude.) The work flow in or out of the gas is is work flowing into or out of the gas? The work is flowing (click to selec

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Answer #1

at constant pressure

work done w = p(change in volume

w = 170*10^3(360-180)*10^-6

w = 30.6 J

here work done is positive so work done by the system

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