Copper has the following properties: specific heat (solid) = 386J.kg-1 C-1 , latent heat (fusion) = 2.07 x 10 5 J.kg -1 , coefficient of thermal expansion = 17 x 10-6 C-1 , melting point of copper = 1356K. a) How much heat is required to raise the temperature of a Copper block of mass 550 grams from 20 o C to 1400K? b) You have a heating system with an electrical power rating of 12,500 W. How long will it take to perform the activity defined in part (a)?
Copper has the following properties: specific heat (solid) = 386J.kg-1 C-1 , latent heat (fusion) = 2.07 x 10 5 J.kg -1 , coefficient of thermal expansion = 17 x 10-6 C-1 , melting point of copper = 1356K. a) How much heat is required to raise the temperature of a Copper block of mass 550 grams from 20 o C to 1400K? b) You have a heating system with an electrical power rating of 12,500 W. How long will it take to perform the activity defined in part (a)?
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter10: Thermal Physics
Section: Chapter Questions
Problem 22P: A construction worker uses a steel tape to measure the length of an aluminum support column. If the...
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Copper has the following properties: specific heat (solid) = 386J.kg-1 C-1 , latent heat (fusion) = 2.07
x 10 5 J.kg -1 , coefficient of thermal expansion = 17 x 10-6 C-1 , melting point of copper = 1356K.
a) How much heat is required to raise the temperature of a Copper block of mass 550 grams from
20 o C to 1400K?
b) You have a heating system with an electrical power rating of 12,500 W. How long will it take
to perform the activity defined in part (a)?
c) If the Copper block is 10.0 m long at 20o C, how long (it’s length!) will it be at its melting point
(before it starts to melt)?
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