Why is water denser than oil?

Answer 1

Water is denser than oil because strong forces of hydrogen bonding are present in between the water molecules so that are very close to each other and thus water has high density. While on the other hand in oil long chains of hydrogen and carbon are present, oil is non polar so the chains of carbon and hydrogen are far apart and do not attract each other. Thus oil is less denser than water and floats on water.

The concept of density can be understood by the thing that one tonne of oil and one tonne of water has equal weight but one tone of oil occupies more space than one tonne of water as water molecules are present very close to one another or in other words water is more dense than oil.

Answer 2

Because its particles aren't as close together weighing it down. Water particles (H2O) are closer together (making the substance more dense) because they "want" to hydrogen bond with each other, which is energetically favorable. Oil (or any hydrocarbon) mainly "want" to just not be pushed up to another molecule so are farther apart at normal temperatures. Under very cold conditions this is less so (water is peculiar in that when it freezes it actually becomes less dense, that's why ice floats).

Read more: Why_is_oil_less_dense_than_water

Answer 3

Water is denser than oil because water molecules are more tightly packed together due to their molecular structure, resulting in a higher density. Oil molecules, on the other hand, are more spread out and have lighter molecular weight, making oil less dense than water.

Answer 4

Yes, Water weighs more than Oil as Oil floats on water.

Answer 5

Water is not heavier then oil. Oil is less dense then water which is why it floats on top of water.

Answer 6

oil is less dense than water and therefore floats. It is however more viscous (gloupy)