Which best describes a molecule?
1.a unit made of different kinds of elements.
2.a unit made of only one kind of element
3.a unit made of two or more atoms
4.a unit made of a single atom

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.