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October 30, 2014

October 30, 2014

Posted by **Matthias Schwartzkopf** on Monday, October 31, 2011 at 5:52pm.

temperature of 295 K. As the gas is compressed isothermally, its pressure increases from

101 kPa to 121 kPa. Find (a) the final volume of the gas, (b) the work done by the gas,

and (c) the heat added to the gas.

- physics -
**drwls**, Monday, October 31, 2011 at 8:53pm(a) PV = constant for an isothermal gas

(b) Work done = -Integral of P dV

= -integral of PoVo*dV/V

= PoVo*dP/P

= PoVo ln(P2/P1)

(c) Qin = Wout + deltaU

= Wout

The internal energy does not change for an ideal isothermal gas.

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