Irreversible/Reversible Processes

isochoric/isometric:
isothermal:
isobaric:

Moderators: Chem_Mod, Chem_Admin

Kate_Santoso_4F
Posts: 72
Joined: Fri Sep 28, 2018 12:29 am

Irreversible/Reversible Processes

Postby Kate_Santoso_4F » Wed Feb 06, 2019 9:27 am

Can someone please explain why isothermal, reversible processes do more work than their irreversible counterpart?

Sarah Fatkin 4I
Posts: 71
Joined: Fri Sep 28, 2018 12:27 am

Re: Irreversible/Reversible Processes

Postby Sarah Fatkin 4I » Wed Feb 06, 2019 10:24 am

Isothermal reversible reactions do more work than irreversible reactions, because isothermal reactions have to work against more external pressure than irreversible reactions. Dr. Lavelle gave the example of a boulder at the top of a hill; work has to be done for the boulder to go up the hill, while less has to be done for it to roll down the hill. Hope this helps!

Tinisha 1G
Posts: 69
Joined: Fri Sep 28, 2018 12:17 am

Re: Irreversible/Reversible Processes

Postby Tinisha 1G » Wed Feb 06, 2019 10:57 am

Reversible processes do more work because the work is the integral of many consecutive efforts of changing pressure. Irreversible processes has a constant pressure and only has one whole effort.

Noah Fox 1E
Posts: 31
Joined: Fri Sep 28, 2018 12:20 am

Re: Irreversible/Reversible Processes

Postby Noah Fox 1E » Wed Feb 06, 2019 11:02 am

Isothermal reversible reactions produce more work because it is done slowly and done with tiny steps and allows the system to come back to equilibrium. Irreversible processes in comparison is one massive push that doesn't achieve the same amount of work because it is less efficient.


Return to “Thermodynamic Definitions (isochoric/isometric, isothermal, isobaric)”

Who is online

Users browsing this forum: No registered users and 1 guest