The molar heat of fusion of aluminum metal is 10.79 kJ/mol, whereas its heat of vaporization is 293.4 kJ/mol. a. Why is the heat of fusion of aluminum so much smaller than the heat of vaporization? O Aluminum vaporizes at higher temperatures. The forces broken when aluminum evaporates are weaker than the forces broken when it melts. O More energy is required to separate the atoms of the liquid into the freely moving and widely separated atoms of the vapor/gas. b. What quantity of heat would be required to vaporize 5.84 g of aluminum at its normal boiling point? c. What quantity of heat would be evolved if 8.74 g of liquid aluminum freezes at its normal freezing point? KJ d. What quantity of heat would be required to melt 0.160 mol of aluminum at its normal melting point? kJ

The molar heat of fusion of aluminum metal is 10.79 kJ/mol, whereas its heat of vaporization is 293.4 kJ/mol. a. Why is the heat of fusion of aluminum so much smaller than the heat of vaporization? O Aluminum vaporizes at higher temperatures. The forces broken when aluminum evaporates are weaker than the forces broken when it melts. O More energy is required to separate the atoms of the liquid into the freely moving and widely separated atoms of the vapor/gas. b. What quantity of heat would be required to vaporize 5.84 g of aluminum at its normal boiling point? c. What quantity of heat would be evolved if 8.74 g of liquid aluminum freezes at its normal freezing point? KJ d. What quantity of heat would be required to melt 0.160 mol of aluminum at its normal melting point? kJ

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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