Physics

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The pressure and volume of a gas are changed along a path ABCA in the figure. The vertical divisions on the graph represent 3.50 105 Pa, and the horizontal divisions represent 2.00 10-3 m3. Determine the work done (including algebraic sign) in each segment of the path.


(a) A to B
J

(b) B to C
J

(c) C to A
J

This problem gives me a pressure versus volume plt graph to read. how do i tell the volvume. i can understand the positive and negative of the graph,but i can't tell the numeric value for the different volumes

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