## Hess's Law

Jina Kwon
Posts: 100
Joined: Fri Aug 09, 2019 12:15 am

### Hess's Law

What property of enthalpy allows Hess's law to be used?

Sarah Blake-2I
Posts: 153
Joined: Fri Aug 30, 2019 12:16 am

### Re: Hess's Law

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.

claudia_1h
Posts: 111
Joined: Fri Aug 09, 2019 12:16 am

### Re: Hess's Law

Enthalpy is a state function (state values can be added/subtracted without worrying how they got there).

Emily Lo 1J
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Joined: Thu Sep 19, 2019 12:16 am

### Re: Hess's Law

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.

HuyHa_2H
Posts: 100
Joined: Wed Sep 11, 2019 12:15 am

### Re: Hess's Law

Enthalpy is a state function therefore the total enthalpy can be summed up which allows Hess's law to be used.

Vivianvelazquez_1J
Posts: 109
Joined: Thu Jul 11, 2019 12:17 am
Been upvoted: 1 time

### Re: Hess's Law

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.

Celine 1F
Posts: 120
Joined: Fri Aug 02, 2019 12:16 am

### Re: Hess's Law

Enthalpy is a state function which means their enthalpy values could be added/subtracted together

Nikki Razal 1L
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Joined: Fri Aug 30, 2019 12:17 am
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### Re: Hess's Law

Enthalpy is a state function, so enthalpy is additive

Veronica Lu 2H
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Joined: Wed Sep 18, 2019 12:18 am
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### Re: Hess's Law

Since enthalpy is a state function, their values can be added/subtracted together

EvanWang
Posts: 101
Joined: Sat Sep 07, 2019 12:16 am

### Re: Hess's Law

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.

AronCainBayot2K
Posts: 101
Joined: Fri Aug 30, 2019 12:17 am

### Re: Hess's Law

Since it is a state function, enthalpy values can be added together or subtracted.

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