Solving for Total Work: A Monatomic Gas at 27degrees C

[ManuelGR]

Homework Statement

A monatomic gas at 27degrees C undergoes a constant volume process from A to B and a constant pressure process from B to C, as shown in the figure below:

Find the total work done during these two processes.

Homework Equations

Not sure...

The Attempt at a Solution

I know I have to find the area under the curve, but I'm not sure how I have to relate the ATM's (pressure) to volume.

 

[rock.freak667]

The Attempt at a Solution

I know I have to find the area under the curve, but I'm not sure how I have to relate the ATM's (pressure) to volume.

Yes, the work done is the area under the curve. For process AB, is any work done? For process BC, the area formed is a rectangle.