Find the critical value X2/L corresponding to a sample size of 24 and a confidence level of 95 percent.

what is the question here. i think you messed up.

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.