PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
A gas expands from 0.010m3 to 0.040m3 along two alternative paths.
Path A: The pressure remains constant at 2.0×105Pa.
Path B: The pressure decreases linearly with volume from 6.0×105Pa at 0.010m3 to 2.0×105Pa at 0.040m3.
Which statement correctly compares the work WA done BY the gas along Path A with the work WB done along Path B?
(a) WB is three times WA.
(b) WB equals WA.
(c) WB is twice WA.},{
(d) WA exceeds WB.