Answer to Question #246232 in General Chemistry for ash

Question

A sample of gas expands and increases its volume by 2.5 L while pushing a piston against an external force of 2 kPa.

 

What is the work done by the expanding gas?

Answer 1

$Pressure , P=2KPa=2000Pa=2000atm$

change in volume, $\Delta V=2.5L$

work done, $W=-P\Delta V=-2000atm\times 2.5L=-5000L.atm=\frac{-5000L. atm}{1}\times \frac{101.3J}{1L.atm}=-506500J$