What is Qp?

[Jaden Haskins 2E]

In the 1/20 lecture, Dr. Lavelle said that Qp = delta H. I am familiar with delta H but get confused about the Q. In equilibrium, Q is an equilibrium constant and P normally represents pressure but I am guessing it is used differently here. If someone could explain what Qp is in the context of enthalpy that would be very helpful!!!

[Chem_Mod]

The "q" we are talking about here is actually a lower-case "q", which represents heat. is q under constant pressure

[Claire_Latendresse_1E]

In equilibrium, Q represents the reactant quotient. In thermochemistry, the q used is lower case q. It represents heat (the energy transferred as a result of a change in temperature). Enthalpy, H, is the heat absorbed or lost in a reaction.
In the lecture, Dr. Lavelle said that qp = delta h under constant pressure. This means that when the pressure is constant, the heat transferred equals the enthalpy because no other forces act on the reaction to cause the temperature change.

[kateraelDis1L]

So lowercase q means heat transferred = enthalpy??

[Jamie Wang 3C]

Qp is the ratio that is similar to Kp when you don't know if the reaction is at equilibrium yet

[Samudrala_Vaishnavi 3A]

qp is basically representing the heat of the system so with a greater change in enthalpy or a positive change in enthalpy, the heat of the system increases, and it is an endothermic system. This is because the change in enthalpy usually refers to the system.