Coefficient of real expansion of mercury is 0.18 X 10/-3°C. If the density of mercury at 0°C is 13.6 g/cc, its density at 200°C is

Coefficient of real expansion of mercury is 0.18 X 10/^-3°C. If the density of mercury at 0°C is 13.6 g/cc, its density at 200°C is

A
13.11 g/cc
B
26.22 g/cc
C
52.11 g/cc
D
13.4 g/cc

Solution:

$ρ = ρ_{0} (1 - γ \cdot Δ θ) = 13.6 [1 - 0.18 \times 10^{- 3} (473 - 273)]$

$= 13.6 [1 - 0.036] = 13.11 g / cc$

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