Question

coefficient of linear expansion of a vessel completely filled with HG is 1 into 10 ki power minus 5 degree Celsius .if there is no overflow of hg
on heating The vessel the coefficient of linear expansion of hg is ?​

Answer 1

Answer:

The observed expansion of liquid is called apparent expansion and it is different from real expansion of the liquid. Initially container was completely filled with liquid. Temperature is increased by Δt Final volume of liquid VL = Vo(1 + γLΔT ) Final volume of container VC = Vo(1 + γCΔT ) So, overflow volume of liquid relative to container ΔV = VL – VC

Answer 2

The coefficient of linear expansion of Hg is VL = VC

Explanation:

Initially container was completely filled with liquid.

Temperature is increased by Δt Final volume of liquid VL = Vo(1 + γLΔT ) Final volume of container VC = Vo(1 + γCΔT ).

So, overflow volume of liquid relative to container ΔV = VL – VC

ΔV = 0

VL – VC = 0

VL = VC

VL should be less than VC to avoid the overflow.