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24 March, 08:09

A piston performs work of 210. L·atm on the surroundings, while the cylinder in which it is placed expands from 12 L to 27 L. At the same time, 45 J of heat is transferred from the surroundings to the system. Against what pressure was the piston working?

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  1. 24 March, 09:07
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    14atm

    Explanation:

    to solve this, equate the work done by the piston to the change in volume of the cylinder.

    work done by the piston w = PV = 210

    i. e. 210 L atm = (27 - 12) L

    210 = 15

    = 14atm
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