Answered: I. Energy and Specific Heat 1)…

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter20: Kinetic Theory Of Gases

Section: Chapter Questions

Problem 42PQ

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Note: Please show all work and calculation setups to get full credit. T. he following may be used on this assignment: specific heat of (water=4.184 J/g oC; ice=2.03 J/g oC; steam=1.99 184 J/g oC); heat of fusion of water=80. cal/g; heat of vaporization=540 cal/g; 1cal=4.184J.

III. Energy and Specific Heat

1) Calculate the energy required to raise the temperature of 7870 cg of copper from 45.0 oC to 85.5 oC.

2) The energy required to change the temperature of a sample of water from 45.0 oC to 95.5 oC is 760 J. Calculate the mass of water in mg.

3) Calculate the energy required to convert all 15.0 g of ice to water (liquid) at its melting point – Show all your work.

4) Calculate the energy required (in J) to convert 25 g of ice at -15 oC to water at 75 oC.

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