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Equal volumes of copper and mercury have...

Equal volumes of copper and mercury have the same thermal capacity. Sp. heat of mercury is `0.046" cal/gm/"^(@)C` and density is 13.6 g/c.c. What is the density of copper if its specific heat is 0.090 ?

A

`0.695 g//cc`

B

`6.95 g//cc`

C

`13.9 g//cc`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B
Thermal Capacity =Vol. `xx` Density `xx` Sp. Heat
or `V xx 13.6 xx0.046 =V xx d xx 0.09`
`therefore d =(13.6xx0.046)/(0.09)=6.95` g/c.c.
`therefore` Correct choice is (b).
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