Chapter 12, Problem 36PS

### Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074

Chapter
Section

### Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074
Textbook Problem

# The specific heat capacity of silver is 0.235 J/g · K. Its melting point is 962 °C, and its enthalpy of fusion is 11.3 kJ/mol. What quantity of energy, in joules, is required to change 5.00 g of silver from a solid at 25 °C to a liquid at 962 °C?

Interpretation Introduction

Interpretation:

The quantity of energy has to be calculated.

Concept introduction:

The energy can be calculated by using following formula,

q =m × c × ΔT

Explanation

TheÂ energyÂ canÂ beÂ calculatedÂ byÂ usingÂ followingÂ formula,Â qÂ =â€‰mÂ Ã—Â cÂ Ã—Â Î”TÂ â€‰MassÂ (m)â€‰=â€‰5.00Â g/molecâ€‰=â€‰0.235J/g.KÎ”TÂ â€‰=â€‰962-(25)â€‰=â€‰937â€‰oCâ€‰=â€‰937â€‰Kq1Â =â€‰mÂ Ã—Â cÂ Ã—Â Î”TÂ q1Â =â€‰5gÂ Ã—Â 0.235J/g.KÂ Ã—Â 937â€‰Kâ€‰=â€‰1100â€‰.97JÂ q1Â =â€‰â€‰â€‰1100â€‰.97JÂ

TheÂ energyÂ canÂ beÂ calculatedÂ byÂ usingÂ followingÂ formula,Â qÂ =â€‰mÂ Ã—Â cÂ Ã—Â Î”TÂ â€‰MassÂ (m)â€‰=â€‰5

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