Delta q and delta h

Moderators: Chem_Mod, Chem_Admin

Johnathan Smith 1D
Posts: 108
Joined: Wed Sep 11, 2019 12:16 am

Delta q and delta h

Postby Johnathan Smith 1D » Sun Feb 02, 2020 9:36 pm

Can someone tell me how q and h are different?

Ariana Iranmahboub1G
Posts: 114
Joined: Fri Aug 09, 2019 12:17 am

Re: Delta q and delta h

Postby Ariana Iranmahboub1G » Sun Feb 02, 2020 9:43 pm

The term q is heat, which is energy transfer due to thermal reactions. On the other hand, enthalpy, delta H, is the total amount of heat released or absorbed at a constant pressure. Therefore, delta h is a state property, but q is not.

Kaylee Sepulveda 4G
Posts: 100
Joined: Thu Jul 11, 2019 12:16 am

Re: Delta q and delta h

Postby Kaylee Sepulveda 4G » Sun Feb 02, 2020 9:47 pm

Q is the amount of heat transferred to a system. ΔH is the change in enthalpy of a system in a reaction.

Q (heat) is not a state function. ΔH (change in enthalpy) is a state function.

Alondra
Posts: 36
Joined: Tue Feb 26, 2019 12:15 am

Re: Delta q and delta h

Postby Alondra » Sun Feb 02, 2020 11:28 pm

Delta Q refers to the amount of heat transferred to a system (heat input)

Delta H is the state of the system, which describes the change in enthalpy (energy of a system)

Jacob Villar 2C
Posts: 105
Joined: Sat Aug 17, 2019 12:18 am

Re: Delta q and delta h

Postby Jacob Villar 2C » Sun Feb 02, 2020 11:30 pm

Q relates to heat transfer, whereas delta H refers to change in enthalpy.

Sean Tran 2K
Posts: 65
Joined: Sat Aug 17, 2019 12:17 am

Re: Delta q and delta h

Postby Sean Tran 2K » Sun Feb 02, 2020 11:39 pm

Q is heat transfer, while H is enthalpy.


Return to “Heat Capacities, Calorimeters & Calorimetry Calculations”

Who is online

Users browsing this forum: No registered users and 3 guests