freezing point questions:?

Question

Need help with this please. someone please explain this to me. thanks!

which contain less heat, ice at 0°C or water at 0°C?


explain why an ice-water mixture will remain at 0°C until all of the ice has melted, even if heat is applied to it??

hope you can help me out! thanks!!

Answer 1

Heat?
Temperature is a measure for infrared radiation caused by particles movement. In ice at 0°, the molecules are bound to their places and move much less than the molecules in water at 0° so in ice you have less heat.
If you apply energy to an ice-water mixture by heating it, the heat will get "used up" for breaking the bonds which hold the water molecules in plaxe in an ice crystal, that means, for melting the ice. Imagine it like the white snooker ball hitting the triangle of colored balls: when you get it moving quick by hitting it with your cue, it stops being quick when it hits the heap of the other balls, its energy goes into busting the heap. Once there is no heap, the white ball will move quickly for a long time after it has been hit, and if it collides with another ball, the other one will move quickly. So the heat you apply to your ice-water-mix speeds up the water molecules at first, they hit the ice crystals and break them up, but losse their speed and by that, your particle speed remains the same and your temperature remains at 0°. Once all the ice is melted, speeding up particles by heat means that they move quicker without being stopped by obstacles and the temperature rises.

Answer 2

Part 1: Ice at 0 will contain less heat than water at the same temp. This is due to the fact that in order to break chemical bonds (Solid to Liquid; Liquid to Gas) heat must be applied. Water has therefor been changed from Solid to Liquid and has had to absorb more heat.

Part 2: I pretty much explained it in part 1 but I will go over it agian. Since there is still ice in an ice water mixture, the heat applied to it will go towards breaking the bonds of the ice. The water will not be able to absorb heat until all ice is water.

Hope that helps.

Answer 3

When heat transfer to liquid state liquid state absorbing rate is more than Solid ice cube.So Ice is less heat.Due to density.....

When applying heat to ice-water state although ice were melt but temperature will not go down rapidly due to the even ice melt state there almost still same temperature when ice has just melted....and will go down slower than water..............I don't know so much but I tried using commen sense...please forgive me If my answer is wrong ( will be totally wrong)

Answer 4

ice at 0 deg C.