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Hess's Law

Posted: Sun Feb 09, 2020 12:03 pm
by Jina Kwon
What property of enthalpy allows Hess's law to be used?

Re: Hess's Law

Posted: Sun Feb 09, 2020 12:12 pm
by Sarah Blake-2I
We can use Hess's law because enthalpy is a state function, which means we can sum the enthalpy values to find the total enthalpy of the new chemical equation.

Re: Hess's Law

Posted: Sun Feb 09, 2020 12:12 pm
by claudia_1h
Enthalpy is a state function (state values can be added/subtracted without worrying how they got there).

Re: Hess's Law

Posted: Sun Feb 09, 2020 3:26 pm
by Emily Lo 1J
We're able to use Hess' Law because enthalpy is a state function. Since it's a state function, we're able to just add the enthalpies together.

Re: Hess's Law

Posted: Sun Feb 09, 2020 5:16 pm
by HuyHa_2H
Enthalpy is a state function therefore the total enthalpy can be summed up which allows Hess's law to be used.

Re: Hess's Law

Posted: Sun Feb 09, 2020 5:35 pm
by Vivianvelazquez_1J
Hess's law is able to be used because enthalpy is a state function. Since enthalpy is a state function, we're able to add the enthalpies together.

Re: Hess's Law

Posted: Sun Feb 09, 2020 6:34 pm
by Celine 1F
Enthalpy is a state function which means their enthalpy values could be added/subtracted together

Re: Hess's Law

Posted: Sun Feb 09, 2020 6:37 pm
by Nikki Razal 1L
Enthalpy is a state function, so enthalpy is additive

Re: Hess's Law

Posted: Sun Feb 09, 2020 9:46 pm
by Veronica Lu 2H
Since enthalpy is a state function, their values can be added/subtracted together

Re: Hess's Law

Posted: Sun Feb 09, 2020 9:50 pm
by EvanWang
We can use Hess's law because enthalpy is a state property, so it doesn't matter the path you take to get from an initial condition to a final condition, the change in enthalpy will always be the same.

Re: Hess's Law

Posted: Sun Feb 09, 2020 9:59 pm
by AronCainBayot2K
Since it is a state function, enthalpy values can be added together or subtracted.