Properties Of Solids And Liquids Question 94

Question: A glass flask is filled up to a mark with 50 cc of mercury at 18ºC. If the flask and contents are heated to 38ºC, how much mercury will be above the mark? (a for glass is 9 × 10?6/ºC and coefficient of real expansion of mercury is 180 × 10?6/ºC) [EAMCET 1997]

Options:

A) 0.85 cc

B) 0.46 cc

C) 0.153 cc

D) 0.05 cc

Show Answer

Answer:

Correct Answer: C

Solution:

Due to volume expansion of both mercury and flask, the change in volume of mercury relative to flask is given by

ΔV=V0[γLγg]Δθ=V[γm3αg]Δθ

=50[180×1063×9×106](3818)=0.153cc



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