Asked by Diana

ALL ice melts at 0*C, but it requires MORE HEAT to melt 10g of ice than it would for 20g of ice.

Why? I thought it was the opposite.
Answered by anon
that strange!! the amount of heat evolved for a particular substance is Q = mc?T where m is the mass of that substance c is the specific heat capacity and ?T is the change in temperature during transition change or reaction.

So as the mass increased so the Q as well.

Answered by ravi&ashu
maybe the factors reponsible are:
surface area.
or the Einstein theory of universe contraction.......
Answered by DrBob222
Surface area changes the TIME it takes to melt but doesn't change the amount of heat required to melt.
I don't know where you got the idea that it requires more heat to melt 10 g than 20 g. And you are right, it IS the opposite. If it takes x amount of heat to melt 10 g it must take 2x to melt 20 grams or 3x to melt 30 g.
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