CBSE Class 11-science Answered
The specific heat capacity of metal is 1 J/g/K . If equivalent mass of metal is 9 , calculate it's exact atomic mass
Asked by arunavamitra50 | 06 May, 2018, 08:11: PM
Expert Answer
Given:
Specific heat = 1 J/gK
= 0.22 cal/g/mol
Equivalent weight = 9
By using Dulong Petit law,
Approximate atomic mass = 6.4 / Specific heat
=6.4/ 0.22
= 29.09 g
Valency = Approximate atomic mass / Equivalent weight
= 29.09 / 9
= 3.23
=3
Exact atomic weight = Equivalent weight × Valency
= 9× 3
= 27
Exact atomic weight of metal is 27 g.
Answered by Varsha | 07 May, 2018, 09:53: AM
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