Question

One mole of a gas occupying ${3dm}^3$ expands against constant external pressure of 1atm to a volume of ${13dm}^3$. The work done

• A. ${-10atmdm}^3$
• B. ${-20atmdm}^3$
• C. ${-39atmdm}^3$
• D. ${-48atmdm}^3$

Answer 1

The correct option is A ${-10atmdm}^3$

$W_{exp}=-P\times \Delta V$
=$-1\times (13-3)={-10atmdm}^3$