(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Look at the PV diagram of a system above. The units for P and V are atmospheric pressure atm and liter L. Process A to B and B to C are straight lines on it.

How much is the work done by the system from A to C in J?

https://tycho-s.physics.wisc.edu/cgi/courses/shell/common/showme.pl?courses/phys103/fall08/homework/12/pv/pv.gif [Broken]

HELP: In general, the work done in an expansion from some initial state to some final state is the area under the curve on a PV diagram. So determine the area under the ABC-curve.

HELP: Each square on the diagram has an area of: 1.5 atm * 1 L = 1.5 atm L = 152 J. Estimate the numbers of squares below the ABC-curve and multiply that number by 152 J. Good luck

3. The attempt at a solution

Wab= pressure x change in volume= 303975 Pa(.004meters cubed)= 1215.9

Wbc= pressure x change in volume= 607950 Pa(.006 meters cubed)= 3647.7

W= Wab +Wbc

but this is not correct. Can anyone help me?

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Pressure vs. Volume graph help!

**Physics Forums | Science Articles, Homework Help, Discussion**