Question

(01.04 MC) Which of the following best explains how hydrogen bonding affects the heat of vaporization for water? (2 points)

The hydrogen bonds cause water to resist a change in temperature.
The number of hydrogen bonds in water increases the amount of H+ ions available. The uneven pull of hydrogen bonds causes water molecules to repel each other. The hydrogen bonds cause water to be highly attracted to other substances.

Answer 1

Answer: A

The hydrogen bonds cause water to resist a change in temperature.

Explanation: Just took the test.

Answer 2

Answer: Option (A) is the correct answer.

Step-by-step explanation:

Latent heat of fusion is defined as the heat energy necessary to convert one gram of a solid substance into liquid state.

Molecular formula of water is
`H_(2)O` and due to the presence of hydrogen atom there is hydrogen bonding present in water.

As boiling point of water is
`100^(o)C` and its heat of vaporization is 40.40.65 kJ/mol. So, it means high heat energy has to be provided in order to break the hydrogen bonding present within the water molecules.

When temperature of water reaches at
`100^(o)C`, hydrogen bonding within water molecules tend to break and its molecules gain high kinetic energy.

This kinetic energy helps the molecules to escape from liquid to gaseous state.

Thus, we can conclude that the statement hydrogen bonds cause water to resist a change in temperature, hydrogen bonds cause water to resist a change in temperature.