If 15 ml of water is added to a solution of hydrochloric acid with a pH of 2, how will the solution change?
A. The pH will decrease.
B. The concentration will increase.
C. The pH will increase.
D. The amount of H+ will decrease.

b is the correct answer

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a). in this case, dh> 0 and sd> 0. if t becomes larger, the term "-tds" will become more negative. at some point, it is possible that -dts will be more negative than the dh is positive, and the reaction will become spontaneous. this is probably the correct answer, but you should look at all of the other possibilities and make sure of that.