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Why are boiling points of liquids usually reported along with the pressure at which the boiling point was measured?
Wiki User
∙ 14y ago
Melting points of pure solids are reported without including the pressure. This is because it is assumed that standard laboratory conditions of 1 BAR, or 25 degrees Celsius were used.
Wiki User
∙ 9y ago
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Why is the boiling point more sensitive to pressure than the melting point?
The boiling point is more sensitive to pressure than the melting point due to the fluidity of liquid. Liquids move around more when pressure is placed on them, as they're already moving around naturally without the extra pressure.
What is the effect of decreased pressure on the boiling and freezing point?
As pressure decreases, the boiling point of water will also decrease. Backpackers camping in the high mountains are familiar with the phenomena when they get water boiling - and find that it is still only lukewarm because the atmospheric pressure at their high altitude is so low.
How is boiling point used in chemistry?
If you know a boiling point, you can separate two different liquids that are mixed together. If the two liquids have different boiling points, you can boil them both. One of the liquids will reach its boiling point before the other liquid and start to evaporate. One of the liquids will have evaporated and will be separated from the liquid with the higher boiling point. This is called distillation. Jarachia ~ x
Why should bumping granules be used when boiling liquids?
To avoid splashing of liquids.
In fractional distillation a mixture of liquids is separated based on their?
The separation of liquids is based on the difference of boiling points.
When is boiling point?
Boiling point is when the liquids pressure equals the pressure of the atmosphere.
Do all the liquids at their boiling points have same vapour pressure?
At the same atmospheric pressure, yes. That's kind of the definition of boiling point: when the vapor pressure is the same as the atmospheric pressure.
How is evaporation different from boiling?
as the evaporation occurs under the atmospheric pressure that is492degr and the boiling point occurs above the atmospheric pressure different liquids have different boiling points just the boiling point of water is 100deg c
Why does water have a different boiling point at elevation than at sea level?
At a higher elevation there is less air pressure. In all liquids, a lower pressure means a lower boiling point.
What are the factors that affect the boiling of liquids?
Short answer: Pressure. Long answer: Pressure changes the boiling point of a substance. The higher the pressure, the higher the boiling point, and vice versa. For example, boiling water in the mountains is easier than boiling water at sea level. Note that boiling water is not necessarily hot. You can boil water at room temperature if the pressure is low enough (For example, using a vacuum generator)
When does boiling point occur?
For water it is 100 degrees celsius, however it is different for other liquids ------------------------- Generally, boiling point is the temperature at which the liquid's vapour pressure is equal to the external atmospheric pressure.
What is the point at which a liquids vapor pressure equals the atmospheric pressure?
This temperature is called the boiling point, and indicates the temperature at which a liquid will assume a gaseous state, given the addition of the heat of vaporization.That is the boiling point.
When is the freezing point of a liquid?
effect of pressure and impurties on the freezing and boiling point of liquids
Why is the boiling point more sensitive to pressure than the melting point?
The boiling point is more sensitive to pressure than the melting point due to the fluidity of liquid. Liquids move around more when pressure is placed on them, as they're already moving around naturally without the extra pressure.
Why liquid change into gas in space?
The boiling point of liquids depends on the pressure. In space, the pressure is so low that stuff boils and evaporates any old how.
How can reduce the boiling point of methanol?
If we pressurize the liquid ( same like pressure coocker) its vapour pressure increases. As the vapour pressure increases boiling point increases and visa versa. Also to reduce the boiling temperature we can add another liquid with a lower boilng point in it so that its boiling point reduces. Exact boiling point can be determined with the known boiling poin t and ratios of the different liquids.
Why is it possible to separate mixtures of liquids by boiling?
Different liquids boil at different temperatures. When the boiling points (the temperature at which a liquid boils) are sufficiently different, boiling can be used to seperate the liquids
