Question

a weighing thermometer contains 300gm of mercury at 0c when it is in boiling water 4.54gm of mercury expels what is the apparent coefficient of expansion of mercury

Answer 1

The apparent coefficient of expansion of mercury is 295.46 /°C

Explanation:

The coefficient of the apparent expansion is increase in the volume of the liquid per unit original volume per degree rise in temperature.

Coefficient of real expansion = Coefficient of apparent expansion + Coefficient of expansion of vessel

Ar = Aa + Av

300 = Aa + 4.54

Aa = 300 - 4.54

∴ Aa = 295.46 /°C

Answer 2

Answer:

Answer:

y*T*300/d=4.54/d

y=4.54/300*200

y=7.6*10^-5 C-1