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?

Question

Social Studies

Paris Acosta

29 April, 07:24

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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Answers (1)

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Elias Strong · Answer 1

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