Question

The work done in ergs for the reversible expansion of one mole of an ideal gas from a volume of 10 liters to 20 liters at 25° is

• A. 2.303 ×298 ×0.082log2
• B. 298 ×107 ×8.31 ×2.303log2
• C. 2.303 ×298 × 0.082log0.5
• D. 2.303×298×2log2

Answer 1

Answer: (B)

298 ×107 ×8.31 ×2.303log2

Answer 2

$W 2.303\, nRT\,log=\frac{V_{2}}{V_{1}}$
$=2.303\times1\times8.314\times10^{7}\times298\,log \frac{20}{10}$
$=298\times10^{7}\times8.31\times2.303\,log\,2$