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 ? ( for glass is 9 × 10–6/ºC and coefficient of real expansion of mercury is 180 × 10–6/ºC)
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a
0.85 cc
b
0.46 cc
c
0.153 cc
d
0.05 cc
answer is C.
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Detailed Solution
Due to volume expansion of both mercury and flask, the change in volume of mercury relative to flask is given by
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 ? ( for glass is 9 × 10–6/ºC and coefficient of real expansion of mercury is 180 × 10–6/ºC)