Thermochemistry

Moderators: Chem_Mod, Chem_Admin

Brandon_Goenawan2O
Posts: 10
Joined: Wed Sep 21, 2016 2:56 pm

Thermochemistry

Postby Brandon_Goenawan2O » Wed Jan 11, 2017 10:51 pm

Hey guys, I'm slightly confused on this topic. What is the difference between the standard enthalpy of a reaction versus the standard enthalpy of formation?
Can someone please explain.
Thanks.

Chris Liddicoat
Posts: 10
Joined: Wed Sep 21, 2016 2:58 pm

Re: Thermochemistry

Postby Chris Liddicoat » Wed Jan 11, 2017 11:05 pm

The Standard reaction enthalpy is when the reactants and products are in their standard states at 1atm. The standard reaction enthalpy of formation is the formation of one mole of a substance from its elements in the elements most stable form. (The most stable form of an element had a standard enthalpy of zero)(If you are still confused the course reader has a great example problem that will clarify :)) Best of luck!!!


Return to “Phase Changes & Related Calculations”

Who is online

Users browsing this forum: No registered users and 1 guest