Your question belongs in the Science Q+A part of eNotes but I'll discuss it anyway.

COP. Your freezer takes 100 watts to make 240 watts . Incidentally breaking the Second Law of Thermodynamics - but not really.

You need to know two important equations.

When something changes its temperature but...

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Your question belongs in the Science Q+A part of eNotes but I'll discuss it anyway.

COP. Your freezer takes 100 watts to make 240 watts . Incidentally breaking the Second Law of Thermodynamics - but not really.

You need to know two important equations.

When something changes its temperature but doesn't change phase the equation is:

Q = mc(T2 - T1)

Sorry I can't use super/subscript here.

During ( and only during) melting or boiling:

Q = mL.

Pleased to solve your simple heat calculation problem in another forum.

Steve K.