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On a Celsius thermometer the distance be...

On a Celsius thermometer the distance between the readings `0^@C` and `100^@C` is 30cm and the area of cross section of the narrow tube containing mercury is `15xx10^-4cm^2`. Find the total volume of mercuty in the thermometer at `0^@C`. `alpha` of glass`=9xx10^-6//K` and the coefficient of real expansion of mercury`=18xx10^(-5)//K`.

Text Solution

Verified by Experts

Apparent increase in volume
`=Vxx(18xx10^-5-27xx10^-6)xx100`
Also apparent increase`=15xx10^-4xx30`
`:. 15xx10^-4xx30`
`=Vxx(18xx10^-5-27xx10^-6)xx100`
or `V=2.94cc`
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