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Boiling is used to describe a change of state of a pure liquid to vapour phase. The particular temperature at which this change of state occurs is defined as the boiling point of that specific liquid.

Now the question is will addition of impurities have any effect on the boiling point of water. The addition of impurities such as salt or sugar to pure water raises its boiling point.

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Q: How does pressure and impurities affects boiling point?
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What affects freezing point?

The factors that affect the freezing point of water are 1. pressure : the pressure on the liquid may alter the freezing point. 2. impurities : the impurities in water such as salt, sugar etc also alters the freezing point.


What may happen to the boiling point of a substance if there are impurities present. Explain in terms of the nature of impurities.?

it might decrease or increase depends on the impurities added.:D


How does abnormally low pressure affect the boiling point of a compound?

lower pressure means a lower boiling point.


How does the boiling point of a liquid vary with pressure?

Something boils when its vapor pressure equals the atmospheric (barometric) pressure above it. When the two are equal, that defines the boiling point.Therefore, you can either boil something by heating the liquid, and thus raising its vapor pressure (vapor pressure goes up with temperature), or you can boil something by reducing the atmospheric pressure above it until it matches the vapor pressure.See the Related Questions links to the left for more information about how the boiling point of water changes with elevation and atmospheric pressure.


Why does sugar raise boiling point?

Sugar increases the boiling waters temperature because it is an impurity. Impurities are dissolving molecules. Another example of an impurity is salt, although salt has a much greater affect on boiling water than sugar does. Impurities will increase water's boiling point because they are able to dilute the concentration/ solution of the water. In other words: the amount of water molecules will decrease and so will the amount of molecules that are able to vaporize at the specific temperature. This causes the need for a higher temperature in order to gain the same amount of vapor pressure, thus raising the boiling point.

Related questions

Effects of impurities and pressure on melting point of water?

melting point decreases with pressure and increases with impurities (like saw dust). boiling point increases with impurities and also increases with pressure.


When water is impure what are its different boiling points?

Water's boiling points shouldn't be affected with impurities in it, unless it has been chemically altered on a mollecular scale, which couldn't be caused by impurities in the water. The only factor that affects waters' boiling point is pressure, for example, mars' air pressure is a lot less than earths', and the boiling point of water there is 23 degrees celcius.


What factor besides the temperature affects the boiling point of water?

Air pressure also affects the boiling point of water. The higher the air pressure, the higher the boiling point.


What is ideas about vapour pressure to explain how impurities increase the boiling point of water?

The boiling point is the point at which the vapor pressure of the liquid reaches atmospheric pressure. So, if you add impurities (solutes) to the pure liquid, the theory is that those molecules get in the way of the solvent molecules, and at the surface that results in a LOWER vapor pressure of the liquid. This then results in an INCREASE in the boiling point, because remember that boiling point is when vapor pressure = atmospheric pressure.


How is the melting point of asolid and boiling point of a liquidaffected when impurities are added to the substances?

Adding impurities lowers the melting point and raises the boiling point.


The boiling point of pure water is?

The boiling point of pure water is typically about 100 degrees Celsius. This value can vary based on factors such as pressure. Additionally, impurities in a sample of water can alter its boiling point.


What affects freezing point?

The factors that affect the freezing point of water are 1. pressure : the pressure on the liquid may alter the freezing point. 2. impurities : the impurities in water such as salt, sugar etc also alters the freezing point.


How does impurity effects boiling point?

Impurities will usually lower the melting point of an organic compound. Impurities also increase the range of melting points in the compound. This means the temperature needed for melting isn't consistent.


How does impurities affect the boiling point of liquid?

Let's say substance A is the substance and substance B is the impurity. The boiling point of the mixture would be somewhere between that of A and B, depending on the amount of impurities in the mixture.


What is the effect of impurities on boiling point of different chemicals?

It varies. A saturated solution of NaCl in water increases the boiling point, higher than 100oC. I suppose most impurities increase the boiling point.


What temperature water boils at?

It boils at 100 oC (212 oF). This is true only if there are no impurities dissolved in the water (impurities increases boiling point, so it may boil at 102oC if it is impure)


What may happen to the boiling point of a substance if there are impurities present?

The boiling point won't decrease