A can containing a small amount of boiling water is filled with water vapor and very little or no air. When cooled quickly, the water vapor condenses into a few drops of water, leaving a partial vacuum in the can. Air cannot enter the can thru the small opening fast enough to equalize the internal pressure with the external atmospheric pressure, and it is crushed by atmospheric pressure.
They are the same. When cold water heats up and bubbles that means it is boiling.
Potassium Manganate (VII) also called potassium permanganate, dissolves very quickly in hot water and much slower in cold water.
Boiling water can harm plant roots by damaging them due to excessive heat. Room temperature water is ideal for plant growth as it is easily absorbed by the roots. Cold or ice water can shock the plant, especially if it is a tropical plant not accustomed to cold temperatures.
No, the process of cold water heating up to its boiling point is a physical change rather than a chemical change. This is because the molecules in water remain the same during the transition from liquid to gas; only their arrangement and energy levels change.
100 oC is the boiling point of water at 1 atmosphere pressure.
Boiling water turns to vapor in the cold because the temperature difference between the hot water and the cold air causes the water to evaporate and turn into vapor.
Sodium chloride is also soluble in boiling water.
They are the same. When cold water heats up and bubbles that means it is boiling.
No, boiling water cannot freeze in the air. Boiling water needs to cool down before it can freeze, and the air is not cold enough to freeze boiling water instantly.
It requires water and oxygen. Cold, lukewarm, or boiling water will do it. Boiling can introduce some other types of errosion/corrosion, also.
You have to fill the can with steam and then seal it closed. when you then put the can in cold water the steam will condense into water and the can will be crushed by atmospheric pressure.
When boiling water is exposed to cold air, it cools down quickly and starts to condense into steam. The steam may appear as fog or mist as it interacts with the cold air.
Hot water takes longer to boil than cold water because hot water is already closer to its boiling point, so it requires more energy to reach the boiling point compared to cold water.
When boiling water is thrown into cold air, it quickly evaporates and turns into water vapor. This happens because the cold air causes the hot water to cool rapidly, leading to a phase change from liquid to gas.
Cold water will not disinfect. Water must be boiling for it to be able to disinfect anything. It is not recommended to pour boiling water on the skin, though. If you're looking to disinfect a wound, try alcohol.
Potassium Manganate (VII) also called potassium permanganate, dissolves very quickly in hot water and much slower in cold water.
When boiling water in cold air, it may take longer to reach boiling point due to the lower temperature. In warm air, the water may boil faster because the surrounding air is already closer to the boiling point.