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Will dissolving a salt in water affect the entropy of the water?

Posted: Wed Feb 07, 2018 7:31 pm
by Kevin Tabibian 1A
If I were to dissolve a salt in water by stirring it (let's say NaCl), will I be affecting the entropy of the water that surrounds it

Re: Will dissolving a salt in water affect the entropy of the water?

Posted: Wed Feb 07, 2018 10:57 pm
by Curtis Tam 1J
Well since this is an endothermic process, I believe some heat would be taken away from the water surrounding the salt. But I'm not sure if this value is even important since I would assume the majority of the change of entropy of the dissolution would be calculating the change in positional entropy, which shouldn't affect the water.

Re: Will dissolving a salt in water affect the entropy of the water?

Posted: Wed Feb 07, 2018 11:53 pm
by Mitch Walters
If you're adding particles wouldn't that increase the entropy?

Re: Will dissolving a salt in water affect the entropy of the water?

Posted: Wed Feb 07, 2018 11:54 pm
by Mitch Walters
Wait new thought, if you're taking a solid and adding it to water, then the entropy would increase, because you now you have an aqueous solution.