Draw the structure of 4-chlorophthalic acid in the window below.

The Molecular formula of the 4-chloropthalic acid:

Explanation:

In 4-chloropthalic acid the main the skeleton in the molecule is benzene ring.

In benzoic acid the one more carboxylic group is present at ortho position and one chloro group is present at para position of the ring.

The structure of the 4-chloropthalic acid is given in an image.

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.