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What happens because water vapor molecules are lighter than nitrogen or oxygen molecules?
Water vapor molecules rise in the atmosphere, causing them to form clouds and ultimately precipitation. This is because lighter molecules have more kinetic energy and therefore move faster, allowing them to rise above the heavier nitrogen and oxygen molecules.
Why alcohol is lighter than water?
Alcohol molecules are less dense than water molecules. This is due to differences in the molecular structure and the amount of space between alcohol molecules compared to water molecules. As a result, alcohol floats on top of water because it is less dense.
Is it always true that the molecules of dense liquid are heavier than the molecules of lighter molecules?
NO. Water has a density greater than gasoline, but gasoline, octane anyway, has a greater molecular mass than water molecules.
Are the molecules in water close to each other?
Yes, the molecules in water are close to each other due to the hydrogen bonding between water molecules. This leads to water having a relatively high density and being in liquid form at room temperature.
Are molecules in hot water different then molecules in cold water?
If you have the same volume of both then there are in cold water more molecules.
What will have more molecules 1 liter of water or 1 liter of ice?
1 liter of water will have more molecules than 1 liter of ice. This is because in ice, the water molecules are arranged in a more spaced out, structured manner compared to the closely packed water molecules in liquid water.
Why do water molecules cohere to form a liquid?
Water molecules cohere to form a liquid due to hydrogen bonding between the molecules. This hydrogen bonding leads to a net attractive force between the molecules, allowing them to stay close together in a liquid state.
Why kerosene float on water?
Kerosene is less dense than water, causing it to float on the surface. This is due to the difference in their molecular structures and the way their molecules interact with each other. The lighter kerosene molecules are unable to displace the heavier water molecules, leading to the kerosene floating on top.
Why soap absorb water?
Soaps are complex combinations of molecules. On the surface of the soap there are many holes and spaces between the molecules that the water can enter. There the water molecules come in and probably penetrate many layers deep into the soap, and stay there. Thus the soap expands and becomes bigger. This happens most in pure water and then less in liquids which not like water. The reason for the difference is that inside the soap there are both "hydrophilic" (water liking) and "hydrophobic" (water hating) portions of the molecules. But importantly, the hydrophilic portions are on the outside of the molecules so water can get close to the molecules. So the more like water the liquid is, the more the water can get close to the molecules and stay with them (be absorbed into the soap). When the water has other particles dissolved in it, like iced tea, Sprite or salt water, the water molecules can't get as close to the hydrophilic portions. And of course the oil molecules are repelled by the hydrophilic portions of the soap. So the answer of why soap absorbs the water is that the water molecules penetrate the soap and stay with the hydrophilic portions of the soap molecules. This happens more when the liquid is more like water.
Does water vapour have mass?
Yes, water vapor does have mass. Water vapor is a gas composed of water molecules, and like all matter, it has mass. However, the mass of water vapor is much lighter compared to liquid water.
Does wax float or sink in water?
Wax generally floats on water because it is less dense than water. The structures of wax molecules create an overall composition that is lighter than water, causing it to float.
What makes a water molecule stick to there container?
Water molecules are polar, meaning they have a positive and negative side, which allows them to form hydrogen bonds with other molecules, like the container. This attraction between the water molecules and the container is called adhesion, which causes the water to stick to the surface of the container. Additionally, the surface tension of water also plays a role in keeping water molecules in close contact with the container.
