Question

At what depth in water can an air bubble remain stationary? Density of air under normal pressure and temperature is 0.001293 g/cm3 and the atmospheric pressure is equal to 76 cmHg

Answer 1

Answer:

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Answer 2

Answer:

Since number of molecules will remain same and we can assume temperature to be constant.

Let at the surface pressure be P and volume be V.

when the volume become V/4 , let at that point pressure be P

1

So P

1

V

1

=P

2

V

2

PV=P

1

4

V

so P

1

=4P

Also P

1

=P+ρgH

So ρ

water

gH=3P

Also at P=ρ

mercurey

gH=13.6×g×76

Putting the value of P in above equation.

ρ

water

gh=3×13.6×g×76

h=3100.8cm

Explanation:

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