Question

Calculate the pressure-volume work done by the system when the gas expands from $1.0$ litre to $2.0$ litre against a constant external pressure of $10$ atmospheres. Express the answer in calorie and joule.

Answer 1

we have

workdone = $-2.303RTlog\frac{V_2}{V_1}$

$w=2.303\ast 8.314\ast 298\ast log2$

$w=1717.63Joules$

$w=2.303\ast 2\ast 298\ast log2=12.78calorie$