MCQ
A gas expands under constant pressure $P$ from volume ${V_1}$ to ${V_2}$. The work done by the gas is
  • $P({V_2} - {V_1})$
  • B
    $P({V_1} - {V_2})$
  • C
    $P(V_1^\gamma - V_2^\gamma )$
  • D
    $P\frac{{{V_1}{V_2}}}{{{V_2} - {V_1}}}$

Answer

Correct option: A.
$P({V_2} - {V_1})$
a
(a) Work done $ = P\Delta V = P({V_2} - {V_1})$

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