(b) A sample of solid material, which has a mass of 0.15 kg, is supplied with energy at a constant rate. The specific heat capacity of the material is 1200 J kg-1 K-' when in the solid state. During heating, its temperature is recorded at various times and the following graph is plotted. 94 temperature"C 58 18- 12 16 time'minutes Assume there is no heat exchange with the surroundings. (i) Show that energy is supplied to the material at a rate of 24 W. (ii) Calculate the specific latent heat of fusion of the material. (iii) Calculate the specific heat capacity of the material when in the liquid state.
(b) A sample of solid material, which has a mass of 0.15 kg, is supplied with energy at a constant rate. The specific heat capacity of the material is 1200 J kg-1 K-' when in the solid state. During heating, its temperature is recorded at various times and the following graph is plotted. 94 temperature"C 58 18- 12 16 time'minutes Assume there is no heat exchange with the surroundings. (i) Show that energy is supplied to the material at a rate of 24 W. (ii) Calculate the specific latent heat of fusion of the material. (iii) Calculate the specific heat capacity of the material when in the liquid state.
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
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Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Transcribed Image Text:(b) A sample of solid material, which has a mass of 0.15 kg, is
supplied with energy at a constant rate. The specific heat capacity
of the material is 1200 J kg- K- when in the solid state. During
heating, its temperature is recorded at various times and the
following graph is plotted.
94
temperature C
58
18
12
16
time minutes
Assume there is no heat exchange with the surroundings.
(i)
Show that energy is supplied to the material at a rate of 24 W.
(ii) Calculate the specific latent heat of fusion of the material.
(iii) Calculate the specific heat capacity of the material when in
the liquid state.
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