Question

# The specific heat of a metal is 0.16 cal/g approximate atomic weight would be:

A
40
B
16
C
32
D
64

Solution

## The correct option is A $$40$$Solution:- (A) $$40$$According to Dulong's Petit law-Approx. at. wt. $$\times$$ Specific heat $$= 6.4$$$$\therefore$$ Approximate atomic weight of the metal $$= \cfrac{6.4}{0.16} = 40 \; g$$.Hence the approximate atomic weight of the metal will be $$40 \; g$$.Chemistry

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