qrev

[Ethan Goode 2H]

I am a little confused what qrev is in the delta S equation. Can anyone explain what it is?

[Madeline Ogden 3B]

qrev is the amount of heat generated in a reversible process.

[Hannah_Butler_2E]

qrev is the amount of heat generated in a reversible process.

So does deltaS = q/T only apply to reversible expansions and compressions?

[Kaitlyn Hernandez 3I]

qrev is the amount of heat generated in a reversible process.

So does deltaS = q/T only apply to reversible expansions and compressions?

I believe you use this equation when you are at a constant temperature for a reversible process.

[Jason_John_2F]

the rev is for reversible

[Daniela Santana 2L]

Hi! q is the energy transferred as heat and when its written as qrev it just means that the energy must be transferred reversibly. I hope this helps :)

[Ziyan Peng 3A]

qrev stands for heat in reversible processes (which we use for isothermal reversible expansion of ideal gas), as opposed to q in general which can refer to both irreversible and reversible processes

[Madeline Ogden 3B]

qrev is the amount of heat generated in a reversible process.

So does deltaS = q/T only apply to reversible expansions and compressions?

I believe that if the problem reads deltaS = q/T, it can be used for both reversible and irreversible reactions, but if it reads deltaS = qrev/T then q is only supposed to be used with a reversible reaction.

[Gustavo_Chavez_1K]

qrev stands for the amount of heat energy transferred in a reversibile reaction.

[Ava Nickman]

heat generation and transfer in a reversible rxn

[Colin Squire 3B]

qrev is the q value or the heat of the reverse reaction.

[jia207]

q is the energy transferred and rev stands for reversible

[Katelynn Shaheen 2C]

qrev is for a reversible process (heat transferred reversibly). q is the transfer of energy

[Aayushi Jani 3A]

qrev refers to the amount of heat transferred in a reversible reaction.

[Brianne Conway 1D]

qrev is the amount of heat generated in a reversible process.

So does deltaS = q/T only apply to reversible expansions and compressions?

I believe you use this equation when you are at a constant temperature for a reversible process.

So then to clarify, when it's an irreversible process and the temperature changes, we're supposed to use the deltaS formula that has ln(T2/T1), right?

[Charlie Russell 2L]

Yeah, I think you can only use that equation when the process can be interpreted as reversible and at constant temperature.

[Christine Ma 3L]

Just wanted to add that by using q_REV, Dr. Lavelle mentioned that it just means that in the context of the problem, there is no heat lost (so the heat lost/gained can be assumed to be exactly equal and opposite).

[apurva-3E]

Heat generated in a reversible process.

[Jaclyn Schwartz 1I]

qrev is the heat generated in a reversible process. the rev represents reversible.

[David Jen 1J]

Qrev is the heat transferred from a reversible process.

[Jared Limqueco 3E]

Q is heat, and rev means for a reversible process.

[Aria Movassaghi 1A]

qrev is the amount of heat transferred in a reversible process

[Tiao Tan 3C]

qrev is the of heat produced in a reversible process.

[Shreyank Kadadi 3K]

It simply means that the heat that is being transferred is part of a reversible process.

[Matlynn Giles 2E]

amount of heat generated in a reversible process

[Ashley Kim 3H]

qrev refers to the amount of heat that is produced in a reversible process!

[Dominic Benna 2E]

qrev is the amount of heat that can be produced (or lost) in a reversible process. So it is saying in this equation it is not asking for the heat produced or lost by an irreversible reaction.

[Sukhkiran Kaur 3I]

it's the amount of heat that's generates in a reverse rxn.