Hess's Law

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Maria Trujillo 1L
Posts: 47
Joined: Fri Apr 06, 2018 11:05 am

Hess's Law

Postby Maria Trujillo 1L » Sun Jan 27, 2019 9:40 pm

Will we need to calculate the kJN when working with Hess's law? Or will it always be given?

mahika_nayak_3L
Posts: 60
Joined: Fri Sep 28, 2018 12:26 am

Re: Hess's Law

Postby mahika_nayak_3L » Sun Jan 27, 2019 10:48 pm

If you are given the enthalpies of 2 separate reactions, you may be asked to use these values to find the net enthalpy change of the overall reaction.

Jason Ye 2I
Posts: 33
Joined: Fri Sep 28, 2018 12:22 am

Re: Hess's Law

Postby Jason Ye 2I » Mon Jan 28, 2019 3:50 pm

You can add the reaction equations together along with their values of enthalpy

Angela Cong 3C
Posts: 69
Joined: Fri Sep 28, 2018 12:25 am

Re: Hess's Law

Postby Angela Cong 3C » Mon Jan 28, 2019 10:24 pm

you will be given the enthalpy with the initial rxns but just keep in mind you will also need to use that to find the final reaction enthalpy.


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