Work Calculations

Moderators: Chem_Mod, Chem_Admin

204408136
Posts: 6
Joined: Mon Jan 26, 2015 2:17 pm

Work Calculations

Postby 204408136 » Thu Jan 14, 2016 11:56 am

By the end of yesterday's discussion I understood that there are two equations that derive from the equation to observe systems at equilibrium. Can someone explain when to use either of the two for problems that require one or the other?

304621080
Posts: 20
Joined: Fri Sep 25, 2015 3:00 am

Re: Work Calculations

Postby 304621080 » Thu Jan 14, 2016 12:59 pm

For the equation w=(-Pext)(DeltaV), the conditions need to be irreversible and under constant pressure. For the equation w=-nRT(ln(Vf/Vi)), the conditions need to be reversible and isothermic.

204408136
Posts: 6
Joined: Mon Jan 26, 2015 2:17 pm

Re: Work Calculations

Postby 204408136 » Sat Jan 23, 2016 10:31 pm

Thank you so much!


Return to “Phase Changes & Related Calculations”

Who is online

Users browsing this forum: No registered users and 1 guest