H and Q

[Kimberly 1H]

What's the difference between H and Q?

[Jessica Tsui 1H]

H, enthalpy, is the measure of potential energy change of a chemical reaction in kJ/mol, while q measures heat in joules. H and q are related, in that -H = +q.

Please correct me if I am wrong.

[Ana Pedreros]

Enthalpy is the amount of heat, H, released or absorbed at a constant pressure, q.

[Noah Fox 1E]

In Enthalpy delta H is a state function of the holistic change in energy configuration, where as q is the heat flow either into or out of the reaction as a result of the change in delta H
Sources:
https://chem.libretexts.org/Bookshelves ... _Chemistry)/Thermodynamics/Energies_and_Potentials/Enthalpy

[Albert Duong 4C]

Delta H is the amount of heat absorbed/released at a constant pressure. Therefore, Qp, being quantity of heat at a constant pressure, should be essentially equal to delta H.