How do you know whether the change in entropy favors the forward or reverse reaction. We are now learning about reaction energy.
For example,
HCL(l) <=> HCl (g) is this reverse reaction. im just taking a guess and if im right can you please tell me how to do this.
2007-03-21 10:12:29 · 1 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
It is always favorable for entropy to increase. This is the Second Law of Thermodynamics.
In your example, you're asking whether it is more favorable for HCl to be in a confined and relatively ordered liquid phase or a disordered gas phase. Clearly, the reaction towards the gas phase (forward direction) will increase in entropy, making it favorable.
The reverse direction will only be favorable if energy is taken out of the system to counterbalance the increase in entropy.
2007-03-23 20:38:00 · answer #1 · answered by Sam 5 · 0⤊ 0⤋