Freezing and melting point of water?

Answer 1

Although there are minor variations in both points due to the different masses of isotopes for both hydrogen and oxygen, Vienna Standard Mean Ocean Water is a specific combination of all main isotopes and is used to define both. Its melting point is by definition 273.15K or 0.01oC, while its boiling point is calculated to be 373.1339K or 99.9839oC. The boiling point can effectively be rounded to exactly 100oC, though, because of sensitivity to barometric pressure (a change of just 4.4 metres, or one storey of a building, more than covers this difference).

Answer 2

The melting and freezing point of water is 0 degrees Celsius.
freezing is 0 Celsius or 32 F.

The freezing point for water is 32 degrees Fahrenheit( 0Celsius) and the boiling point for water is 212 degrees Fahrenheit (100 Celsius).

Pure water undergoes a change of state at 0° Celsius (32° Fahrenheit).

• If energy is being removed from the system (freezing), ice crystals begin to form. If energy continues to be removed, the ice will continue to thicken and solidify. For small to moderate quantities of water, the ice-water mixture will remain fundamentally at 0°C until all of the liquid has been converted. (For larger quantities, water is most dense at 4°C [39°F]; the heavier water sinks until and unless it is fully chilled.)

• If energy is being added to the system (thawing or melting), the ice begins converting back into water. Again, the mix will remain at 0° until all of the ice has melted; the energy needed to do this is called the latent heat of fusion.

Note that because ice is nearly unique among solids in being lighter than its fluid, it floats. This makes it more and more difficult to freeze a large body of water (such as a lake), as the ice itself acts as an effective insulator. And a good thing too, as this peculiar property may have acted to save the development of life on our planet during the hypothesized Snowball Earth era.

Answer 3

The difference between the melting point and bioling point of water is that it's melting point is when it turns from solid to liquid, (ice to water). It's boiling point is when it turns from liquid to gas, (water to water vapor).

Answer 4

boiling point is 212 degrees Fahrenheit and freezing point is 32 dgrees

The boiling point of water in 100 degrees C

The melting/freezing point is 0 degrees C.

Answer 5

The melting point of ice is 0 degrees Celsius and boiling point of water is 100 degrees Celsius.

Answer 6

The melting point of water is the temperature at which it changes from solid to liquid (ice to water) and is at 0 degrees celsius and the boiling point is 100 degrees Celsius.

Answer 7

1. The melting point is the temperature at which a solid will turn into a liquid, and the boiling point is the temperature at which a liquid will turn into a gas.

Answer 8

• the freezing point and boiling point of water is same that is 0 degree centigrade.

Answer 9

The melting and freezing point of water is 0 degrees Celsius.