Why does hot water freeze faster than cold Quora?
Fact: Hot water is less dense than cold water so equal volumes hot water has less mass.
Fact: Hot water has a higher vapor pressure than cold water and evaporates faster.
The Mpemba effect is the observation that warmer water sometimes freezes faster than colder water..
Which freezes faster hot water or cold?
The Mpemba effect is the observation that warm water freezes more quickly than cold water. … Hence the faster freezing. Another is that warm water evaporates rapidly and since this is an endothermic process, it cools the water making it freeze more quickly.
Does hot water freeze clearer than cold water?
Conclusion: Hot water does not freeze significantly clearer than cold water, even when the vessel is covered to reduce oxygen re-absorption. In all of these ice experiments so far, the major cloudy factor in the ice has not been cloudiness throughout the ice, but a cloudy spot in the center of the ice.
Does hot water freeze faster than cold water Mythbusters?
“It all depends on how fast the cooling occurs, and it turns out that hot water will not freeze before cold water but will freeze before lukewarm water.
How much faster does hot water freeze?
Say that the initially cooler water starts at 30°C and takes 10 minutes to freeze, while the initially warmer water starts out at 70°C. Now the initially warmer water has to spend some time cooling to get to get down to 30°C, and after that, it’s going to take 10 more minutes to freeze.
How long does it take for ice to freeze with hot water?
The Mpemba Effect and How it Works Another way to freeze water fast is by using hot water instead of cold. This should only take about two hours compared to three or four hours. Believe it or not, hot water actually freezes faster than cold water under the same conditions.