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Why would the boiling point of a solution be higher than that of a pure solvent?
Wiki User
∙ 10y ago
Liquids in a pure state have a specific boiling point.
Water, for example, boils at 100 oC at 1 atm. However once there are impurities in the liquid the boiling point will be elevated. The degree of elevation depends on the quantity of impurity in the liquid.
Wiki User
∙ 14y ago
Wiki User
∙ 11y ago"The boiling point of a substance is the temperature at which the vapor pressure of the substance equals atmospheric pressure. A solution containing a nonvolatile solute, having a lower vapor pressure than the pure solvent, must be at a higher temperature before its vapor pressure equals atmospheric pressure and it boils. Thus, the boiling point of a solution containing a nonvolatile solute is higher than that of the pure solvent."
From: http://www.chem.wisc.edu/deptfiles/genchem/sstutorial/Text11/Tx117/tx117.html
Wiki User
∙ 15y agoGenerally speaking, adding solutes to solvents raise the boiling point of a solution
Wiki User
∙ 10y agoThe presence of a solute makes it harder for solvent molecules to escape when heated, so the boiling point of a solution is higher than that of the pure solvent.
Wiki User
∙ 7y agoThe boiling point of the solution is higher.
Wiki User
∙ 7y agoAdding a solute the concentration of the solvent decrease and also vapor pressure decrease, so the boiling point increase. This phenomenon is called boiling-point elevation.
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Explain why a solution has a lower boiling point than the pure solvent?
Most solutions have a HIGHER boiling point than the pure solvent. A solution with a lower boiling point than the solvent has formed an azeotrope.
What happens to a nonvolatile solute when added to water and the water raises?
Boiling-point elevation describes the phenomenon that the boiling point of a liquid (a solvent) will be higher when another compound is added, meaning that a solution has a higher boiling point than a pure solvent. This happens whenever a non-volatile solute, such as a salt, is added to a pure solvent, such as water. The boiling point can be measured accurately using an ebullioscope.
How does the addition of solute affect freezing and boiling point and vapor pressure on a solvent?
A non-volatile solute affects increases osmotic pressure. This is a colligative property. There will be a higher osmotic pressure required to prevent the solvent from flowing into the solution because the solvent has a higher chemical potential without solute in it.
How a similarities and dissimilarities of solute and solvent affect the boiling point of solution?
solute is which we are mixing and solvent is that in which we are mixing solute
What is the boiling point of a 2.86 m solution of ammonium nitrate NH4NO3 Assume that the solvent is waterwhich has a Kb of 0.51ºCm and a boiling point of 100.0ºC?
102.9ºC
The boiling point of a liquid solution is?
Higher then the boiling point of the solvent.
Explain why a solution has a lower boiling point than the pure solvent?
Most solutions have a HIGHER boiling point than the pure solvent. A solution with a lower boiling point than the solvent has formed an azeotrope.
What happens to the boiling point of a solution as the concentraion increases?
Boiling-point elevation describes the phenomenon that the boiling point of a liquid (a solvent) will be higher when another compound is added, meaning that a solution has a higher boiling point than a pure solvent. This happens whenever a non-volatile solute, such as a salt, is added to a pure solvent, such as water. The boiling point can be measured accurately using an ebullioscope.
What happens to a nonvolatile solute when added to water and the water raises?
Boiling-point elevation describes the phenomenon that the boiling point of a liquid (a solvent) will be higher when another compound is added, meaning that a solution has a higher boiling point than a pure solvent. This happens whenever a non-volatile solute, such as a salt, is added to a pure solvent, such as water. The boiling point can be measured accurately using an ebullioscope.
What happens to a solvent when a nonvolatile solute is added to it?
It increases the boiling point of the solution and it increases the temperature range over which the solution remains a liquid.
How does the addition of solute affect freezing and boiling point and vapor pressure on a solvent?
A non-volatile solute affects increases osmotic pressure. This is a colligative property. There will be a higher osmotic pressure required to prevent the solvent from flowing into the solution because the solvent has a higher chemical potential without solute in it.
Why does adding a solute to a solvent raise the boiling point of the solution?
A nonvolatile ( not readily evaporated) solute elevates the boiling point of a solvent (the temperature at which the solvent boils) because its presence lowers the vapor pressure of the solvent. * The normal boiling point of a liquid occurs at the temperature where the vapor pressure is equal to 1 atmosphere. * The presence of a nonvolatile solute decreases the number of solvent molecules per unit volume , so less molecules escape form the liquid. Thus the vapor pressure of the solvent decreases. * Therefore, such a solution with lower vapor pressure must be heated to a higher temperature than the boiling point of the pure solvent to reach a vapor pressure of 1 atmosphere.
Compared to the pure water an aqueous solution of calcium chloride has a?
Higher boiling point and a lower freezing point. These are called colligative properties. When a solute is put into solution with the solvent, there is a change in the vapor pressure, osmotic pressure, elevation of the boiling point, and depression of the freezing point.
How do different solutes affect boiling point?
When a solute is added to a solvent, the boiling point is raised according to the equation ΔTb=Kbm. Thus, the boiling temperature of a solution can be described by: Tb(solution)=ΔTb + Tb(pure solvent). However, for the purposes of this question, adding a solute increases the boiling point of a solution.
Which has a higher boiling point 0.50 NaCl or 0.50 MgCl2?
The magnesium chloride solution has a higher boiling point.
How a similarities and dissimilarities of solute and solvent affect the boiling point of solution?
solute is which we are mixing and solvent is that in which we are mixing solute
What is freezing point elevation?
This is not a common phenomenon. Usually it is boiling points that are elevated, and freezing points are depressed. It is possible that a freezing point could be raised (elevated) due to the presence of an impurity with a much higher freezing point.Changes in boiling and freezing points are typically due to impurities in compound.See the Related Questions to the left for more information about freezing point depression and boiling point elevation problems.
