## Enthalpy w/ Temp

805383532
Posts: 53
Joined: Thu Jul 11, 2019 12:16 am

### Enthalpy w/ Temp

How does a change in temperature affect enthalpy?

SnehinRajkumar1L
Posts: 101
Joined: Thu Jul 11, 2019 12:15 am

### Re: Enthalpy w/ Temp

An increase in temperature leads to a change in enthalpy. Increasing temperature increases enthalpy, and vice versa.

Deepika Reddy 1A
Posts: 125
Joined: Thu Jul 11, 2019 12:15 am

### Re: Enthalpy w/ Temp

If a reaction loses heat so that the products have less heat than the reactants, then the enthalpy is negative. If a reaction gains heat in order to occur, then the enthalpy is positive.

Natalie Benitez 1E
Posts: 100
Joined: Fri Aug 02, 2019 12:15 am

### Re: Enthalpy w/ Temp

How do we tell with enthalpy that a reaction is exothermic or endothermic?

Shrayes Raman
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Joined: Sat Jul 20, 2019 12:15 am

### Re: Enthalpy w/ Temp

Enthalpy is listed as h as with other examples if it is negative it is exothermic and vice versa

Justin Quan 4I
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Joined: Sat Sep 14, 2019 12:17 am

### Re: Enthalpy w/ Temp

Natalie Benitez 1E wrote:How do we tell with enthalpy that a reaction is exothermic or endothermic?

If enthalpy is negative, then heat is lost or released from the system and the reaction is exothermic. If enthalpy is positive, then heat is absorbed or gained into the system and the reaction is endothermic.

Ashley Fang 2G
Posts: 102
Joined: Fri Aug 30, 2019 12:17 am

### Re: Enthalpy w/ Temp

It makes sense that as temperature increases, so does enthalpy if we refer back to the equation:
delta G = delta H - T(delta S)