Does cold water reach boiling point faster than hot water?

Answer 1

Yes, from a molecular standpoint, the boiling temperature of water at standard pressure (STP), is always 100*c. Water starting at 33*c will take longer to boil than water starting at say 50*c. The temperature of water is directly proportional to the amount of thermal energy in it. The higher the temperature, the more energy the water initially has in it. If your heat source applies constant rate of thermal energy to the water, it will take less time for the warmer water to reach the amount of energy needed to change states (evaporate).

But think about this... Would you rather consume boiled water that came from a cold tap, or would you rather it come from a warm, stagnant cylinder (water heater).

Personally, the extra amount of time it takes to boil cold water, is well worth it.

Answer 2

Hot water boils faster than cold water. Cold water absorbs more heat while it is still cold, as it warms up the speed at which it slows down as it warms up.

Answer 3

Hot water boils faster than cold. However, it takes more energy because of the energy lost in the heater, pipes and transportation to the stove.

Answer 4

It does not boil quicker. Water boils at 100 C. or 212 F.

Answer 5

hot water because the atoms and the molecules are already moving around which will cause it to boil faster

Answer 6

fresh water does ive tryed it

Answer 7

Cold

Answer 8

No.

Answer 9

Cold water