Delta S

[romina_4C]

Why is delta S equal to zero in a reversible reaction?

[Giselle Littleton 1F]

The change in entropy of the surroundings is the same as the change in entropy of the system.

[cassidysong 1K]

When talking about that it's important to note what exactly the delta S is for. For reversible reactions the total delta S is zero whereas the delta S of the system is a number and the the delta S of the surroundings is equal and opposite to the delta S of the system.

[Andrew Liang 1I]

In reversible reaction, we were told that delta S = 0, but in reality it's the delta S total that is 0, meaning that the change in entropy of the surrounding and the change in entropy of the system is the same with opposite sign.

[nehashetty_2G]

Delta S total = 0 to in a reversible reaction not delta S. Remember Delta S implies Delta S of the system.

[kim 2I]

Delta S total = 0 for a reversible, isothermal expansion. This means that the delta S system = - delta S surroundings based off of the equation delta total = delta S system + delta S surroundings. Delta S total = 0 since the change of entropy between the system and its surroundings is equal and opposite.

[kendal mccarthy]

entropy is equal to S. DeltaS is the change in entropy. If the reaction is reversible, the total deltaS, which is equal to the deltaS of the system + the deltaS of the surroundings, is equal to 0.