Standard reaction enthalpy vs. Standard enthalpy of formation

Moderators: Chem_Mod, Chem_Admin

Shanzey
Posts: 120
Joined: Wed Sep 18, 2019 12:20 am

Standard reaction enthalpy vs. Standard enthalpy of formation

Postby Shanzey » Sun Jan 26, 2020 5:57 pm

I do not really understand the difference between standard reaction enthalpy and standard enthalpy of formation. What makes them different, and how would we be asked to use them?

Kate Osborne 1H
Posts: 102
Joined: Fri Aug 30, 2019 12:16 am

Re: Standard reaction enthalpy vs. Standard enthalpy of formation

Postby Kate Osborne 1H » Sun Jan 26, 2020 6:04 pm

Reaction enthalpy is the heat given off/absorbed during a reaction while enthalpy of formation is the difference between the elements in their standard state and the compound they form. You will need to use these in the different methods for calculating enthalpy.

MaggieHan1L
Posts: 100
Joined: Thu Jul 11, 2019 12:17 am

Re: Standard reaction enthalpy vs. Standard enthalpy of formation

Postby MaggieHan1L » Sun Jan 26, 2020 9:34 pm

Standard enthalpy of reaction can be any type of reaction but standard enthalpy of formation is specifically forming one mole of a compound using elements in standard states.


Return to “Phase Changes & Related Calculations”

Who is online

Users browsing this forum: No registered users and 1 guest