I missed a few classes and am totally lost for this lab. I have to determine whether or not ammonium chloride dissolving into water is a spontaneous process. I know the answer is yes, but I would much rather know why that is so... I know there is an increase in entropy as a rigid, structured salt is broken down into an aqueous solution. I also know there is an increase in enthalpy as it is an endothermic reaction. I don't know what the driving force is though, is it entropy or enthalpy?
Also, I need to know whether or not calcium chloride is a spontaneous process. Again, I think the answer is yes, but don't know why. I know that the exothermic qualities of the reaction mean that enthalpy decreases, while entropy increases as the CaCl2 dissociates. I don't know what the driving force here is either.
Thanks in advance! Would really love some help.