Question

10 moles of an ideal gas confined to a volume of 10 L is released into atmosphere at 300 K where the pressure is 1 bar. The work done by the gas is:
(R = 0.083 L bar k${}^{-1}$ mol${}^{-1}$)

• A. 249 L bar
• B. 259 L bar
• C. 239 L bar
• D. 220 L bar

Answer 1

The correct option is C 239 L bar

Initial volume, $V_1=10L$
$V_2\left(final\right)=\frac{nRT}{P}=\frac{10\times 0.083\times 300}{1}=249$
$W=P△V=1\times (249-10)=239Lbar$