The melting point of aluminum is 660°C, its latent heat of fusion Lf 4.00 x 105 J/kg, and its specific heat C = 900J/kg K. How much heat must be added to 500 g of aluminum originally at 27°C to completely melt it? Hint: Use the figure below to organize your thinking. T. Q1 = mcAT Q2 = mLf Tr Qi Q2 The first increment of heat Q1 raises the temperature of the solid Aluminum from its initial temperature T¡ to the fusion temperature Tf in a specific heat process. The second increment of heat Q2 melts the Aluminum in a latent heat process. 14 kJ O 147 kJ 395 kJ 485 kJ O 273 kJ
The melting point of aluminum is 660°C, its latent heat of fusion Lf 4.00 x 105 J/kg, and its specific heat C = 900J/kg K. How much heat must be added to 500 g of aluminum originally at 27°C to completely melt it? Hint: Use the figure below to organize your thinking. T. Q1 = mcAT Q2 = mLf Tr Qi Q2 The first increment of heat Q1 raises the temperature of the solid Aluminum from its initial temperature T¡ to the fusion temperature Tf in a specific heat process. The second increment of heat Q2 melts the Aluminum in a latent heat process. 14 kJ O 147 kJ 395 kJ 485 kJ O 273 kJ
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
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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:The melting point of aluminum is 660°C, its latent heat of fusion Lf = 4.00 x 105 J/kg, and its specific heat C = 900J/kg · K. How much heat must be added to 500 g of
aluminum originally at 27°C to completely melt it?
Hint: Use the figure below to organize your thinking.
Q1 = mcAT
Q2 = mLf
Ti
Qi
Q2
The first increment of heat Q1 raises the temperature of the solid Aluminum from its initial temperature T¡ to the fusion temperature Tf in a specific heat process. The
second increment of heat Q2 melts the Aluminum in a latent heat process.
O 14 kJ
O 147 kJ
O 395 kJ
O 485 kJ
O 273 kJ
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