Posted by mario on Wednesday, December 7, 2011 at 11:05pm.
How much heat is needed to raise the temperature of 75 grams of copper from 35„aC to 57„aC? The specific heat of copper is 0.385 J/g „aC.

chemistry  DrBob222, Thursday, December 8, 2011 at 12:36am
q to raise T WITHIN a phase (solid to solid, liquid to liquid, gas to gas) = q = mass x specific heat in that phase x (TfinalTinitial).
q to CHANGE the phase (solid to liquid) is q = mass x heat fusion.
q to CHANGE the phase (liquid to gas) = q = mass x heat vaporization.
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