A SCUBA driver is 100 ft below the surface of the ocean where the water exerts a pressure 43.3 psi at 18.0o The diver exhales and many bubbles are released and these bubbles rise to the surface where the atmospheric pressure is 1.03 psi and the temperature is 36.0o C. One bubble has a volume of 20.0 mL. What is the volume of the bubble at the surface? You may assume the composition of the bubble does not change and the bubble remains intact as it rises. P1 = P2 = V1 = V2 = n1 = n2 = T1 = T2 =
- A SCUBA driver is 100 ft below the surface of the ocean where the water exerts a pressure 43.3 psi at 18.0o The diver exhales and many bubbles are released and these bubbles rise to the surface where the atmospheric pressure is 1.03 psi and the temperature is 36.0o C. One bubble has a volume of 20.0 mL. What is the volume of the bubble at the surface? You may assume the composition of the bubble does not change and the bubble remains intact as it rises.
P1 = P2 =
V1 = V2 =
n1 = n2 =
T1 = T2 =
Intial (below surface) final ( at surface)
P1 = 43.3 psi P2 = 1.03 psi
Pressure in atm
1 psi = 0.068046 atm
P1=43.3×0.068046 atm P2=1.03×0.068046 atm
P1 = 2.94639 atm P2 = 0.070087 atm
V1 = 20 mL V2 = ? mL
T1 = 18.0°c T2 = 36.0°c
Temperature in Kelvin
0° c = 273.15 atm
T1 = 18 + 273.15 T2 = 36 + 273.15
T1 = 291.15 K T2 = 309.15 K
* ideal gas equation =>
P V = n R T
For intial => P1 V1 = n R T1
For final => P2 V2 = n R T2
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