4B.5 and 4B.13 part a


Moderators: Chem_Mod, Chem_Admin

Jielena_Bragasin2G
Posts: 104
Joined: Sat Aug 24, 2019 12:18 am
Been upvoted: 1 time

4B.5 and 4B.13 part a

Postby Jielena_Bragasin2G » Mon Jan 27, 2020 9:31 pm

In both of these problems I used w=-(Pext)(delta V) to find work but it is given in atm. In the solutions manual it is multiplied by a constant to convert it to joules. Can someone explain to me what constant should I use to convert my answer into joules? Thanks!

Harry Zhang 1B
Posts: 101
Joined: Sat Sep 14, 2019 12:16 am

Re: 4B.5 and 4B.13 part a

Postby Harry Zhang 1B » Mon Jan 27, 2020 9:43 pm

You would use 1L*atm=101.325J. This can be found in a example problem on page 247.

Haley Dveirin 1E
Posts: 101
Joined: Sat Jul 20, 2019 12:17 am

Re: 4B.5 and 4B.13 part a

Postby Haley Dveirin 1E » Mon Jan 27, 2020 9:44 pm

So in the case of 4B 5 the units of w are L atm so you have to multiply it by 8.31447 J/mol K and then divide it by 0.08206 L atm/mol K in order to get the units to be J.


Return to “Concepts & Calculations Using First Law of Thermodynamics”

Who is online

Users browsing this forum: No registered users and 3 guests