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

Pintsize

Social Studies

8 July, 01:51

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?

+1

Answers (1)

Know the Answer?

Bruno Andrade · 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