1. (a) Is the process of KNO3 dissolving in water spontaneous at all temperatures studied?Briefly explain.Answer:Yes, KNO3 dissolution is spontaneous at any T, due to dH dS values. It favors high T as well.For a reaction to be spontaneous the delta G value must be negative. Delta G is given by dG =dH - TdS. Since dissolution of KNO3 in water disassociates into free ions, the entropy of theprocess increases and since the process is endothermic delta G remains negative at alltemperatures.(b) Is the reaction in (a) one that gives off heat or requires heat? Briefly explain.Answer:KNO3 wh ...
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