BIOCHEMISTRY
POLAR AND NONPOLAR MOLECULES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Strong dipole-dipole bonds between water molecules
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Strong hydrogen bonds between water molecules
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Dispersion forces which are present in all molecules
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Asymmetrical shape of the polar bonds.
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Detailed explanation-1: -Water has a high boiling point because its molecules are bound together by hydrogen bonding, which is a very strong intermolecular force. It takes more kinetic energy, or a higher temperature, to break the hydrogen bonding between water molecules, thus allowing them to escape as steam.
Detailed explanation-2: -Because hydrogen bonds are rather strong intermolecular interactions, breaking them requires a great deal of energy. This is why water has a high boiling point: breaking the intermolecular interactions that hold water molecules together requires a lot of heat (energy).
Detailed explanation-3: -The high melting and boiling point of the compound containing hydrogen bonds is due to the fact that some extra energy is needed to break these bonds.
Detailed explanation-4: -Water molecules in liquid state have the ability to form hydrogen bonds with each other. These hydrogen bonds are some of the strongest of all intermolecular forces, so a large amount of energy is needed to break these interactions − this is the main reason why water has such a high relative boiling point.