Question

Which of the following best explains how hydrogen bonding affects the heat of vaporization for water?

Answer 1

A. The hydrogen bonds cause water to be highly attracted to other substances, thereby increasing the energy needed to separate and vaporize it.
B. The hydrogen bonds cause water to resist a change in temperature, thereby increasing the energy needed to vaporize it.
C. The number of hydrogen bonds in water increases the amount of H+ ions available, thereby decreasing the energy needed to separate and vaporize it.
D. The uneven pull of hydrogen bonds causes water molecules to repel each other, thereby decreasing the energy needed to vaporize them.

I think this one is D?

Answer 2

It's B.

I actually answered this question earlier this week, so if you scroll down in the forum you can find it. I'll try to find a link to it for you too...

Answer 3

Here's the first link: http://openstudy.com/users/blues#/updates/4f0efb65e4b04f0f8a9160af

Here's the second: http://openstudy.com/users/blues#/updates/4f0e4962e4b04f0f8a912599

They really do need to get a searchable archive for these test bank questions.