A gas absorbs certain amount of heat and expands by $200 \mathrm{~cm}^3$ against a constant external pressure of $2 imes 10^5 \mathrm{Nm}^{-2}$. What is work done by system?

Question

A gas absorbs certain amount of heat and expands by $200 \mathrm{~cm}^3$ against a constant external pressure of $2 	imes 10^5 \mathrm{Nm}^{-2}$. What is work done by system?

Aicharya · Accepted Answer

$\begin{aligned} \mathrm{W} & =-\mathrm{P} \Delta \mathrm{V} \ & =-2 	imes 10^5 \mathrm{~N} \mathrm{~m}^{-2} 	imes 200 	imes 10^{-6} \mathrm{~m}^3 \ & =-40.0 \mathrm{~J} \approx-40.53 \mathrm{~J}\end{aligned}$

A gas absorbs certain amount of heat and expands by $200 \mathrm{~cm}^3$ against a constant external…

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