Determine the amount of heat, in kJ, required to heat 34 g of liquid Ca at 851C to 926 C. Melting Point = 851C Boiling Point 1487C Molar Heat Capacities: Csolid 26.2 J/mol C C liquid = 31.0 J/molC AH_fusion = 9.33 kJ/mol AH_vaporization = 162 kJ/mnol

Determine the amount of heat, in kJ, required to heat 34 g of liquid Ca at 851C to 926 C. Melting Point = 851C Boiling Point 1487C Molar Heat Capacities: Csolid 26.2 J/mol C C liquid = 31.0 J/molC AH_fusion = 9.33 kJ/mol AH_vaporization = 162 kJ/mnol

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter9: Liquids, Solids, And Materials

Section: Chapter Questions

Problem 97QRT

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Crystal Structures

Solids are present all around us. They have different properties and applications. Diamond and graphite are two well-known solids. Diamond is the hardest material in the world and is used in making jewelry. Graphite on the other hand is soft. The lead of your pencil is graphite. Why are they so different in appearance and properties despite the fact they are chemically the same? Both are allotropes of carbon. The answer lies in the structure, the way constituent particles are arranged in the solids.

Question

Determine the amount of heat, in kJ, required to heat 34 g of liquid Ca at 851C to 926 C.
Melting Point = 851C
Boiling Point = 1487C
Molar Heat Capacities:
Csolid
= 26.2 J/mol C
C liquid
= 31.0 J/molC
AH_fusion
= 9.33 kJ/mol
AH_vaporization
= 162 kJ/mol

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