Standard Enthalpy of Form; Balanced Eqns

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Sydney Wu 2M
Posts: 50
Joined: Fri Jul 22, 2016 3:00 am

Standard Enthalpy of Form; Balanced Eqns

Postby Sydney Wu 2M » Thu Jan 12, 2017 4:31 pm

Why are fractional coefficients required when balancing the equation? Don't whole numbers make everything cleaner?

Da_Rhee_1O
Posts: 20
Joined: Wed Sep 21, 2016 2:59 pm

Re: Standard Enthalpy of Form; Balanced Eqns

Postby Da_Rhee_1O » Thu Jan 12, 2017 5:11 pm

Regarding standard enthalpy of formation, it is the change in enthalpy when ONE mole of the substance you are trying to find is formed in the standard state. It is important that the rest of the equation is balanced according to having only one mole of the substance. That is why fractions may be seen.

Sydney Wu 2M
Posts: 50
Joined: Fri Jul 22, 2016 3:00 am

Re: Standard Enthalpy of Form; Balanced Eqns

Postby Sydney Wu 2M » Fri Jan 13, 2017 6:29 am

Thank you! :)


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