a wieghtthermometer contains 200 g of mercury at 0 degree centigrade is surrounded by a liquid in a bath and 8 g of mercury flows out . what was the temperature of the bath if co-eff of apparent expansion of mercury is 0.00018 ?

Dear Student,

Initial volume of the mercury is 200 g, then the mass flowing out, when the temperature increases is 8 g. Therefore, the

The relation between the mass and the density of the thermometer is $m=V\rho ⇒m\propto \rho$

So, along with the temperature the mass and density varies in the same manner. So, the relation for the mass flown out is,