Hot and cold water and ice.

[mrnuggets]

Does hot water poured over ice cubes melt the cubes faster than pouring cold water over ice cubes?

[Ethel]

It depends on how many ice cubes and how much water.

Try it!

[brachiopod]

Most definitely "yes", assuming equal volume of ice and equal volume of water.

[Clanad]

I want to make sure I understand the intent of your answer, brachiopod... if you mean two containers of the same amount of ice are exposed to thea same quantitiy of water, one cold and the other warm, I agree, but only as to the rate of heat ransfer. By that I mean, heat transfer is always dependent on the differential of temperatures, is it not? Therefore, any difference in the temperature of the two amounts of water added to ice will more quickly melt the ice. If a small amount of water at, say 60 degrees F, is added to any quantitiy of ice, the resultant rate of melting will be quantifiably greater than any amount of water added whose temeprature is lower than 60 degrees F. I believe this is required by Fourier's Law and its attendant equation for conductive transfer... (Good to see you again, by the way!)...

[Gef]

I know what you mean mrmuggets and the answer is yes.