Question

A scuba diver at a depth of 41.0 m below the surface of the sea off...

A scuba diver at a depth of 41.0 m below the surface of the sea off the shores of Panama City, where the temperature is 5.00C, releases an air bubble with volume 19.0 cm3. The bubble rises to the surface where the temperature is 23.00C. What is the volume of the bubble immediately before it breaks the surface? The specific gravity for seawater is 1.025.

Homework Answers

Answer #1

T1 =5 0C = 5+273 = 278 K

T2 = 23 0C =23+273 = 296 K

V1 =19 cm^3

h =41 m , g =9.8 m/s^2

Specific gravity for sea water is =1.025

density of water =1000 kg/m^3

Then density of sea water is d=1.025x1000 kg/m^3

d =1025 kg/m^3

Pressure at surface P2 =1 atm = 1.01x10^5 Pa

Pressure at bottom P1 =P2+dgh = (1.01x105) +(1025*9.8*41) =5.13 x105 Pa

From the relation between P,V and T

(P1V1)/T1 =(P2V2)/T2

V2 = P1V1T2/P2T1 = [5.13x105 x 19cm3 x 296]/[ 1.01 x105 x278]

V2 = 102.75cm3

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