- #1
quietrain
- 655
- 2
if a gas expands isothermally but irreversibly from V=1litres to V=2litres under constant external 1atm pressure,
if i want to know the workdone by the gas,
should i be using
1) WD = integral pdV = nRT ln V
or
2) WD = pexternal(Vfinal-Vinitial)
i realize they give different answers, since T was not specified, i assumed it to be 298K
thanks!
if i want to know the workdone by the gas,
should i be using
1) WD = integral pdV = nRT ln V
or
2) WD = pexternal(Vfinal-Vinitial)
i realize they give different answers, since T was not specified, i assumed it to be 298K
thanks!