how much energy is needed to melt 15 kg of ice at zero degree celsius?

Answer 1

I'm assuming that temperature of ice is 0 degrees Celsius and pressure is one atmosphere.

Then
Q=Cv m
Cv = 334E+3 Joules/kg
Q=334 E+3 x 15.0=22.3 E+3 Joules

Answer 2

Ice will soften or freeze at 0C reckoning on its means content cloth. there is something reported as "warmth of fusion" which determines how plenty means you are able to desire to place into ice formerly it could soften or freeze. once you boil water on a range, you are able to desire to get it as much as 100C, after which you would be able to desire to desire to place extra desirable means into it for it to grow to be a gas. the same is going for solids. as an occasion: enable's say you're taking an ice cube out of the freezer. this is at -3C whilst it comes out. you place it on the counter for a on the same time as and degree its temperature with a magic thermometer. The ice will start to heat till it reaches 0C, then this is going to end warming for somewhat. The air needs to put in yet extra means for the molecules to start keeping apart and swap right into a liquid. as quickly as the ice will become a liquid, its temperature will proceed to extend till it reaches room temperature. For extra, seek for "warmth of Fusion" and "warmth of evaporation"

Answer 3

Look up th eheat of fusion for water and multiply by the mass. Be careful of teh units.