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posted by  Click here on 7/24/2008 6:54:56 PM  |  status: Closed  

Work done

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Question Details:
An ideal gas expands at a constant total pressure of 3.2 atm from 2.8E2 mL to 7.0E2 mL. Heat then flows out of the gas at constant volume, and the pressure and temperature are allowed to drop until the temperature reaches its original value.
 

Calculate the total work done by the gas in the process.

=____J
Calculate the total heat flow into the gas.
=____J
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posted by Steve (retired) on 7/24/2008 7:42:51 PM  |  status: Live
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Response Details:
(a)
   the total work done will be
   W = P ΔV
        = (3.2 atm) (1.01 x 105 Pa / 1 atm) (700 x 10-3 L - 280 x 10-3 L)(1 x 10-3 m3 / 1 L)
        = ........ J
(b)
   Q = W
       = ........ J
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