Calculate the work done when 2 moles of an ideal gas expand from a volume of $5 \mathrm{dm}^3$ to $7 imes 10^{-3} \mathrm{~m}^3$ against a constant external pressure of $2.02 imes 10^5 \mathrm{Nm}^{-2}$.

Question

Calculate the work done when 2 moles of an ideal gas expand from a volume of $5 \mathrm{dm}^3$ to $7 	imes 10^{-3} \mathrm{~m}^3$ against a constant external pressure of $2.02 	imes 10^5 \mathrm{Nm}^{-2}$.

Aicharya · Accepted Answer

W.D. $=-P\left(v^2-v^1ight)$ $\begin{aligned} & =2.02 	imes 10^5(7-5) \ & =-404 	imes 10^3 \mathrm{~J} \ & =-404 \mathrm{~kJ}\end{aligned}$

Calculate the work done when 2 moles of an ideal gas expand from a volume of $5 \mathrm{dm}^3$ to $7 \times…

Solution