Pure water has a high boiling point than tap water. True or False. Why?

Answer 1

If you add boiling chips to pure water it will boil. This question is probably refering to the colligative property of elevated boiling point. If you have a solute in a solvent, the boiling point is elevated according to the equation:

Tb = To + k*i*m

Where Tb is the solution boiling point, To is the boiling point of the pure solvent, k is the boiling point elevation constant (deg celcius / molal), i is the van't Hoff (or ionization) factor, and m is the molality of the solution.

So tap water boils at a higher temperature because of ions like sodium, potassium and chloride

Answer 2

Boiling Point Of Pure Water

Answer 3

OMG Yahoo answers are soooo bad. Yes pure water boils and will boil at 100C given the air pressure at sea level. If you disolve just about anything in water, you will raise it s boing point - but normallly not by much. Salt water boils at 102C. However, a pot of salt water will come to a boil faster, all else being equal, because pure water can hold more heat (it heats up more slowly and cools down more slowly). There isn t much salt or anything else disolved in tap water, so it s unlikely you could notice any difference at all, but if there is a difference the tap water would start boiling sooner even though it would boil at a higher temperature.

Answer 4

Any pure substance has a sharp boiling point. Pure water is one of them, and the water boils at 100 C sharp. Impurities in water only makes the water start boiling at a lower temperature, but the boiling point is still around 100 C.

Answer 5

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Due to a phenomonen called 'boiling point elevation'. This occurs because a pure substance (water) has a fixed boiling point (under given temp/pressure etc...) Addition of a solute such as NaCl induces a change in the activity of the system and consequently the boiling point. This is a colligative property (i.e., it is dependent on how much of the 'impurity' or solute is present).

Answer 6

Tap water includes chlorine and VOCs, which have a lower boiling point than water. So Pure water has higher BP than tap water.

Answer 7

this is false.
tap water has high boiling point than the pure water.
see elevation in boiling point.

Answer 8

Having anything in solution increases the boiling point. Pure water can be heated beyond the boiling point in some conditions.

Answer 9

false. ions in water cause the boiling point to rise and the freezing point to fall. pure water has no ions. therefore, pure water has a lower boiling point than tap water, which does have ions.

Answer 10

Did you know that tap water is slightly acidic than Pure Water.
Well it is simply becuse of the acidic nature and acidic properties that tap water's boiling point is less than that of pure water( or maybe you meant fresh water ).