LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

MOLECULAR BIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which is NOT part of the reason for water’s thermal properties?
A
large amount of hydrogen bonding
B
water is dipolar
C
high strength of hydrogen bonds
D
attraction between opposite partial charges
Explanation: 

Detailed explanation-1: -Summary. Water molecules are polar, so they form hydrogen bonds. This gives water unique properties, such as a relatively high boiling point, high specific heat, cohesion, adhesion and density.

Detailed explanation-2: -Surface Tension, Heat of Vaporization, and Vapor Pressure Water’s high surface tension is due to the hydrogen bonding in water molecules. Water also has an exceptionally high heat of vaporization. Vaporization occurs when a liquid changes to a gas, which makes it an endothermic reaction.

Detailed explanation-3: -The property of cohesion describes the ability of water molecules to be attracted to other water molecules, which allows water to be a “sticky” liquid. Hydrogen bonds are attractions of electrostatic force caused by the difference in charge between slightly positive hydrogen ions and other, slightly negative ions.

There is 1 question to complete.