If deep-sea divers rise to the surface too quickly, nitrogen bubbles in their blood can expand and prove fatal. This phenomenon is known as the bends. If a scuba diver rises quickly from a depth of 25 m in Lake Michigan (which is fresh water), what will be the volume at the surface of an N2 bubble that occupied 1.0 mm3 in his blood at the lower depth? Does it seem that this difference is large enough to be a problem? (Assume that the pressure difference is due to only the changing water pressure, not to any temperature difference. This assumption is reasonable, since we are warm-blooded creatures.)

Q: Estimate the fraction of molecular volume to the actual volume occupied by oxygen gas at STP. Take…

A: Diameter of an oxygen molecule, d = 3 Å Radius, r =d/2 = 1.5 Å = 1.5 × 10 – 8 cm

Q: A cylinder of diameter S, of height h, contains pure gas with equation PV = nRT at constant…

A:

Q: You are an astronaut exploring a new planet in a distant solar system. This planet has an…

A: Given data: The atmospheric pressure on the planet is P=1000 mm of Hg. The oxygen content of the…

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A:

Q: I put air in the tires of my car during the summer, while it was 34.9˚C outside (about 94.82˚F). My…

A: From the ideal gas law, pressure, temperature and volume of a gas are related as PV=nRTP is…

Q: Boyle's Law states that when a sample of gas is compressed at a constant temperature, the pressure P…

A: Given relation PV=Constant Differentiating ,PdV+VdP=0 At an instant V=600 Cm3 , Pressure (P) =150…

Q: Q. 18 : The speed of molecules are given by 2 m/s, 3 m/s, 4 m/s, 5 m/s, and 6 m/s. The mean square…

A: Given,  Let the speed of molecules are given by                  v1 = 2 m/s                v2 = 3…

Q: A container holds 2.5 moles of an ideal gas at a pressure of 3.5 atmospheres and a temperature of…

A: Number of moles of gas (n) = 2.5 molesPressure (P) = 3.5 atmTemperature (T) = 300 KVolume (V) = 10 L

Q: (a) How many molecules of gas are there in this sample? (b) How many moles of gas are there in this…

A: ideal gas eqution in terms of moles - PV=nRT Where P =pressure , V =Volume,n =no of Moles, R =Gas…

Q: might seem more natural to give the average speed rather than vrms, but vrms follows more directly…

A: Given v1 = 500 m/s V2 = 600 m/s V3 = 700 m/s V4 = 800 m/s V5 = 900 m/s

Q: You're inflating tires on your bike with a manual pump. The volume inside the pump is initially .16…

A:

Q: The most dangerous particles in polluted air are those with diameters less than 2.5 μm because they…

A: Stoke's velocity is given by:

Q: You are using a 680 W microwave to heat 700 ml of olive oil. If the initial temperature of the oil…

A: Microwave radiation causes rotational transitions in the molecules. By absorbing microwave…

Q: Nitrogen, the most abundant gas in the atmosphere (78%), is not necessary in the cardiovascular…

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Q: A hot air balloon uses the principle of buoyancy to create lift. By making the air inside the…

A: Let m be the mass of the air inside the balloon.

Q: For an ideal gas in constant volume if you double the temperature ( T2= 2 T1), what is the new…

A:

Q: A solution containing 3.76 x 1023 molecules/m3 of protein in water is separated from pure water by a…

A: To calculate the diffusion coefficient "D" of the protein, we can use Fick's Law of Diffusion, which…

Q: The mean free path for a certain gas is 2.18×10−7 m. and the radius of an atom of said gas is…

A: given: mean free path l = 2.18*10-7 mradius of atom r = 1.11*10-11 m

Q: What is the volume of 67 mol of gas, in the unit of m3, when the pressure is 87 kPa and the…

A: Number of moles of gas, n=67 Pressure, p=87kPa⇒87×103Pa Temperature, T=680C⇒68+273K⇒341K Let the…

Q: A gas with molecules of radius r and mass per molecule m is at temperature T and pressure p. (a)…

A: The mean free time is the ratio of the mean free path to the typical velocity, usually, we take rms…

Q: A water molecule has a diameter of about 0.275 nm. How many hours would it take for a water molecule…

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Q: In the lungs, a thin respiratory membrane separates tiny sacs of air from the blood in the…

A:

Q: When air expands adiabatically (without gaining or losing heat), its pressure P and volume V are…

A:

Q: The partial pressure of oxygen in the lungs is about 150 mm of Hg. (The partial pressure is the…

A: According to Fick's law,

Q: A semi-permeable membrane separates the contents of cell. The concentration of sodium ions is 2 mol…

A: Pressure outside: Tonicity:  HypotonicExplanation:

Q: If I have an unknown quantity of gas held at a temperature of 370 K in a container with a volume of…

A: Given that - Pressure Volume Temperature To Find - We have to determine the nuber of moles of the…

Q: Long-term space missions require reclamation of the oxygen in the carbon dioxide exhaled by the…

A: The carbon di oxide exhales by the A single astronaut is 1.09 kg/ each day. So, the amount of CO2…

Q: You have completed several dives using SCUBA apparatus and are ready for a deep dive in seawater.…

A:

Q: A deep sea diver should breathe a gas mixture that has the same oxygen partial pressure as at sea…

A: Partial pressure of oxygen is (20.9/100)*1.01*105 N/m2 = 2.12*104 N/m2

Q: At standard temperature and pressure, a gas has a density of 0.085 kg/m3.  What volume (in m3) does…

A: Given that   density (ρ) =0.085 kg/m3   M=1.03 kg What volume V (in m3) =?

Q: Case 1: A container with argon gas is sealed by a movable heavy piston with cross sectional area, A.…

A: To explain: The case that requires more work by the argon.

Q: The thickness of the membrane that surrounds an alveolar sac is 300 µm. How long does it take (ms)…

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Q: A fixed amount of gas occupies a volume of 1.75L and exerts a pressure of 95kpa on the walls of its…

A:

Q: The concentration of a frictionless fluid flowing through a channel is measured  with a diffusion…

A: CONCEPT:

Q: Assuming a total pressure of 9.5 X 105 Pa, what is the partial pressure of each component in the…

A: The given values with suitable variables are listed below. Here, P denotes the total pressure, fHe…

Q: A hot air balloon uses the principle of buoyancy to create lift. By making the air inside the…

A:

Q: The gas law for an ideal gas at absolute temperature T (in kelvins), pressure P (in atmospheres),…

A:

Q: Long-term space missions require reclamation of the oxygen in the carbon dioxide exhaled by the…

A: Given data: The amount of carbon dioxide exhales by a single astronaut is m1=1.21 kg. The number of…

Q: uced in the cell nucleus to reach the walls of the cell at a distance 1.00um, corresponding to the

A: Given as, D=1.0×10-11m2s-1, r=1.0 μm=10-6m.

Q: The figure below shows a gas contained in a vertical piston–cylinder assembly. A vertical shaft…

A: