Question

Let ∆Wa and ∆Wb be the work done by the systems A and B, respectively, in the previous question.
(a) ∆Wa > ∆Wb
(b) ∆Wa = ∆Wb
(c) ∆Wa < ∆Wb
(d) The relation between ∆Wa and ∆Wb cannot be deduced.

Answer 1

The correct answer is (c).

Explanation:

• In the p-V diagram, with reference to the V axis, the area under the curve is equal to the effort performed by the system.

• The work performed by system A is not more than that the work done by system B.

• This is because of the reason that since the zone under the adiabat is lesser than the zone under isotherm. Hence, ∆Wa < ∆Wb.