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Is it always true that the molecules of dense liquid are heavier than the molecules of lighter molecules?
Wiki User
∙ 11y ago
NO. Water has a density greater than gasoline, but gasoline, octane anyway, has a greater molecular mass than water molecules.
Wiki User
∙ 11y ago
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Why is it possible to separate the hydrocarbons in crude oil into fractions by distillation?
Different materials boil at different temperatures (generally and very roughly speaking, for similar molecules the lighter they are the lower the temperature at which they boil). By raising the temperature enough to boil the lighter components of a mixture but not enough to boil the heavier ones, the mixture can be separated into two "fractions", one of which is rich in lighter molecules and one which is rich in the heavier molecules. In practice, this is generally done in "fractionating columns", where the temperature gradually decreases as you go up the column. The very lightest molecules will make it all the way to the top; slightly heavier ones will condense back into liquid a little further down, and so on. By taking out the liquid at different heights, you can separate the crude oil into many different fractions with different properties (petroleum ether, gasoline, kerosene, paraffins, etc.).
Why does cracking turn a mixture of liquids from crude oil into mixture of gases?
That's not QUITE what it does, or at least it's not ALL of what it does. For similar compounds, in general, lighter molecules boil - that is, become a gas - at a lower temperature than heavier ones. "Cracking" is the process of splitting large, heavy molecules into smaller, lighter ones. Because they are lighter, they boil at a lower temperature, and so will become gases when the heavier starting material would still be a liquid.
Three liquids with different are dumped into a glass What do you expect to see?
They form individual layers depending on their densities...the liquids with lighter density floats on liquid with heavier density......
Why oil cannot be mixed with water?
because oil is a heavier liquid and water is a lighter liquid. you can see this by pouring some water and oil in a glass cup and wait until it settles. you can see that oil will be on the bottom and water will be on top.
Is a pressurized liquid heavier than a non pressurized liquid?
Liquid cannot be presurized.
Does the particle's size make the particle movement go slow or fast?
Well, if in a gas you have a mixture of heavier and lighter particles (atoms or molecules, really), the lighter particles will tend to move faster than the heavier particles. The general tendency is for any such particle to have the same energy (mainly kinetic energy). Similarly, in a liquid solution, lighter particles will tend to move faster.
What is the application of the centrifuge?
A centrifuge spins a material, usually liquid, at a high speed to separate the heavier components from the lighter components. The heavier components are pushed to the bottom and the lighter components stay at the top.
What causes objects to float?
in relation to solids or liquids in liquids: Density. A lighter density compound/liquid will float in a heavier density liquid
Why is it possible to separate the hydrocarbons in crude oil into fractions by distillation?
Different materials boil at different temperatures (generally and very roughly speaking, for similar molecules the lighter they are the lower the temperature at which they boil). By raising the temperature enough to boil the lighter components of a mixture but not enough to boil the heavier ones, the mixture can be separated into two "fractions", one of which is rich in lighter molecules and one which is rich in the heavier molecules. In practice, this is generally done in "fractionating columns", where the temperature gradually decreases as you go up the column. The very lightest molecules will make it all the way to the top; slightly heavier ones will condense back into liquid a little further down, and so on. By taking out the liquid at different heights, you can separate the crude oil into many different fractions with different properties (petroleum ether, gasoline, kerosene, paraffins, etc.).
2 teaspoonds are equal to how many pounds?
Depends on the liquid because all liquids have different densities making them lighter or heavier
Why does cracking turn a mixture of liquids from crude oil into mixture of gases?
That's not QUITE what it does, or at least it's not ALL of what it does. For similar compounds, in general, lighter molecules boil - that is, become a gas - at a lower temperature than heavier ones. "Cracking" is the process of splitting large, heavy molecules into smaller, lighter ones. Because they are lighter, they boil at a lower temperature, and so will become gases when the heavier starting material would still be a liquid.
Three liquids with different are dumped into a glass What do you expect to see?
They form individual layers depending on their densities...the liquids with lighter density floats on liquid with heavier density......
Are particles in liquid more spread out than those in a gas?
Take a litre of water and a litre of steam. They are both H20. The heavier one must contain more molecules, and its molecules must be more "closely packed". So, does the liquid or the cas have "particles more spread out"?
Why hydrometer sinks more in the lighter liquid than the heavier ones?
If any object displaces a weight of liquid equal to or greater than its own weight, it will float. If it displaces less weight, it will sink. This is true regardless of the density of the liquid. Stated formally: "Any object, wholly or partly immersed in a fluid, is buoyed up by a force equal to the weight of the fluid displaced by the object." This is known as Archimedes' Principle.
Molecules of a liquid to a molecule of water vapor?
It's particles spreadf apart.
Is any oil heavier than water?
Oil heavier than water must have a density greater than 1 gm/cc. In oil field terms, this is stated as an API gravity of 10. There are a number of large deposits of oil with low API gravities. On the related link, descriptions and occurrences of heavy and extra heavy oil are provided.
Why oil cannot be mixed with water?
because oil is a heavier liquid and water is a lighter liquid. you can see this by pouring some water and oil in a glass cup and wait until it settles. you can see that oil will be on the bottom and water will be on top.
