The boiling point of a liquid solution is what?

Question

a. the same as the boiling point of the solvent.
b. the same as the boiling point of the solute.
c. higher than the boiling point of the solvent.
d. lower than the boiling point of the solvent.

Can you also explain why the answer is so? Thanks.

Answer 1

c. it's called boiling point elevation, a type of colligative property of solutions. basically, the solvent has a certain boiling point, but by making a solution, you are adding another compound to the solvent, which in turns causes it's boiling point to rise. that's not a scientific answer, but you can think of that as the "easy way" answer. for a more scientific explanation, just search on the internet "colligative properties of solutions" or "boiling point elevation".

Answer 2

I have to agree with c as well. One reason you can think about is when you add the solute to the solvent, it changes the vapor pressure of the solvent since the solute particles can sterically block some of the solvent particles from escaping the liquid phase. This action lowers the overall vapor pressure of the solvent and thus requires a higher temperature point to reach boiling b/c afterall, boiling point is defined as the temperature at which the vapor pressure of a liquid is equal to the atmospheric pressure around the system.

Answer 3

well, if you go by the book, and by the book I mean that literature (correctly) says that the boiling point of a solvent increases with a solute (that's a coligative property), the answer is c, higher than the boiling point of the solvent, nevertheless when the solution is very dilluted you could use the same boiling point as the solvent without the solute if you don't worry about being that accurate on your calculations and have a good answer without calculating coligative properties.

Answer 4

My answer is a b/c solute is dissolved in solvent.So mainly boiling pt depend on solvent

Answer 5

I accept as true with the above. it extremely relies upon on how a lot warmth can fairly get the debris shifting. So, if syrup provides the main capability, then soda, then wine, then salt water, then water... then it might make experience that the single that promises off the main capability is the single with the backside boiling factor.

Answer 6

Usually c. Think of adding salt to water so that it boils at a higher temperature, so things cook faster.

Answer 7

c

when you have a mixture (colligative properties)
boiling points are raised,....
freezing points are depressed from the original
properties of the solvent.