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May 29, 2015

Homework Help: Physics

Posted by Hannah on Sunday, February 5, 2012 at 8:36am.

(a) How much heat in kcal must be provided for a 0.853 kg block of lead to raise the
temperature of 0.015 kg block of ice from -5C to 0C? (b) How much heat in kcal must be
provided for a 0.853 kg block of lead to melt a 0.015 kg block of ice from at 0C? (c) How
much heat in kcal must be provided for a 0.853 kg block of lead to raise the temperature of
0.015 kg of liquid water from 0C to 5C? (d) What is the total amount of heat in kcal needed
for the whole process? (e) To what temperature must a 0.853 kg block of lead be heated in
order to complete this task? (specific heat for lead = 0.0305 kg/kcal*C)(Assume that there is
no heat lost to the surroundings.)

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