Asked by Lanny
Explain how the entropy and enthalpy values ( + or -) can be used to explain the spontaneous or nonspontaneous solvation of
different salts.
I know that the if the entropy value is higher the more spontaneous the process is but don't know why. And I don't know how to answer for the enthalpy one. I know that usually the the higher the enthalpy value, the more spontaneous a reaction is but this is not always true.
different salts.
I know that the if the entropy value is higher the more spontaneous the process is but don't know why. And I don't know how to answer for the enthalpy one. I know that usually the the higher the enthalpy value, the more spontaneous a reaction is but this is not always true.
Answers
Answered by
DrBob222
What you really want is a "paper" to really do a good job.
dG = dH-TdS is the crux. dG = 0 the system is at equilibrium. If dG is + it is non-spontaneous but if - it is spontaneous. Obviously, the molre + S is the more negative the number and the more exothermic the more spontaneous. You need to take that information and weave it into a story.
dG = dH-TdS is the crux. dG = 0 the system is at equilibrium. If dG is + it is non-spontaneous but if - it is spontaneous. Obviously, the molre + S is the more negative the number and the more exothermic the more spontaneous. You need to take that information and weave it into a story.
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