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CBSE Class 11-science Answered

The specific heat of a metal M is 0.25. Its equivalent wgt  is 12. What is the correct atomic wgt ?  
Asked by minipkda | 18 Aug, 2018, 08:13: PM
answered-by-expert Expert Answer
Given:
 
Specific heat of metal =0.25
 
equivalent weight =12
 
We space have comma Atomic space weight space cross times space Specific space heat space equals space 6.4 space open parentheses Approx. close parentheses Approx space atomic space weight space equals fraction numerator 6.4 over denominator Specific space heat end fraction space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals fraction numerator 6.4 over denominator 0.25 end fraction Approx space atomic space weight space equals 25.6 Now comma Valency equals fraction numerator Approx space atomic space weight over denominator Equivalent space weight end fraction space space space space space space space space space space space space equals fraction numerator 25.6 over denominator 12 end fraction Valency space almost equal to 2 Exact space atomic space weight space equals Valency cross times Equivalent space weight space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals 2 cross times 12 Exact space atomic space weight space equals space 24
 
Exact atomic weight of metal is 24.
Answered by Varsha | 20 Aug, 2018, 10:17: AM

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