Question

At 22.0 m below the surface of the sea (density = 1 025 kg/m3), where the...

At 22.0 m below the surface of the sea (density = 1 025 kg/m3), where the temperature is 5.00°C, a diver exhales an air bubble having a volume of 0.90 cm3. If the surface temperature of the sea is 20.0°C, what is the volume of the bubble just before it breaks the surface?

Homework Answers

Answer #1

h = depth = 22 m

= density of sea water = 1025 kg/m3

Po = atmospheric pressure = 101325 Pa

P = pressure at depth = Po + gh = 101325 + (1025) (9.8) (22) = 322315

T1 = Temperature at surface = 20 C = 20 + 273 = 293 K

T2 = Temperature at bottom = 5 C = 5 + 273 = 278 K

V2 = Volume at bottom = 0.90 cm3

V1 = Volume at top = ?

Using the equation

Po V1/T1 = P V2/T2

(101325) V1/293 = (322315) (0.90)/278

V1 = 3.02 cm3

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