Question

In: Chemistry

A scuba diver 40ft below the ocean surface inhales 50.0 mL of compressed air from a...

A scuba diver 40ft below the ocean surface inhales 50.0 mL of compressed air from a scuba tank at a pressure of 3.50 atm and a temperature of 6 degrees celsius.

Part A: What is the pressure of the air, in atm, in the lungs when the gas expands to 150.0 mL at a body temperature of 37 degrees celsius, and the amount of gas remains constant?

Expert Solution

V₁= 50 mL

P₁= 3.50 atm

T₁= 6℃= 6+273= 279‬ K

V₂= 150 mL

P₂= ?

T₂= 37 ℃= 37+273= 310 K

since

P₁V₁/T₁= P₂V₂/T₂

therefore

P₂= P₁V₁T₂/V₂T₁

Plug in all values

P₂= 50mL*3.50 atm*310 K/150 mL* 279 K

P₂=1.30 atm

Therefore final pressure P₂=1.30 atm

Your one thumbs up will help me lot. Thanks!

queen_honey_blossom answered 2 years ago

A suba diver 60ft below the ocean surface inhales 50.0mL of compressed air at 3.00 atm...

A suba diver 60ft below the ocean surface inhales 50.0mL of compressed air at 3.00 atm and 241K from a scuba tank. What is the pressure of the air at 37C in the lungs where it expands to 150.mL?

.44 The compressed air tank of a scuba diver reads 3,200 psi at the beginning of...

.44 The compressed air tank of a scuba diver reads 3,200 psi at the beginning of a dive and 825 psi at the end of a dive. Convert each of these values to atm and mmHg. 6.48 If someone takes a breath and the lungs expand from 4.5 L to 5.6 L in volume, and the initial pressure was 756 mmHg, what is the pressure inside the lungs (in mmHg) before any additional air is pulled in? 6.52 How hot...

A standard SCUBA diving tank holds 10.9 L of compressed air at 204.1 atm. a. What...

A standard SCUBA diving tank holds 10.9 L of compressed air at 204.1 atm. a. What are the mole fractions of N2 (Tc = 126.20K and Pc = 33.5 atm) and O2 (Tc = 154.4K and Pc = 49.7 atm) in air? b. Determine how many moles of air are in this tank when filled, assuming the tank is at 25°C.

An adult inhales approximately 12 times per minute, taking in about 500 mL of air with...

An adult inhales approximately 12 times per minute, taking in about 500 mL of air with each inhalation. Oxygen and carbon dioxide are exchanged in the lungs, but there is essentially no exchange of nitrogen. The exhaled air has a mole fraction of nitrogen of 0.75 and is saturated with water vapor at body temperature, 37°C. If ambient conditions Professor Christina Tang, [email protected] 2 are 25°C, 1 atm and 50% relative humidity, determine what volume of liquid water (mL) would...

When scuba diving, it is important to come back to the surface of the water from...

When scuba diving, it is important to come back to the surface of the water from deep dives slowly. If this does not happen, then the diver can get the “bends”. Using the information provided below, determine the moles of N2 and O2 dissolved in 7.5 L of blood at 298 K at a depth of 100.0 feet below the surface of the water and at the surface of the ocean. If the diver were to suddenly return to the...

A proposed Ocean Thermal Energy Conversion (OTEC) plant draws heat from the ocean surface at 22°C...

A proposed Ocean Thermal Energy Conversion (OTEC) plant draws heat from the ocean surface at 22°C and rejects heat to the water near the ocean bed at 4°C. What is the highest thermal efficiency the plant could achieve? [4] (b) Consider a system undergoing an adiabatic process from a fixed state 1 to a fixed state 2. Use the Second Law of Thermodynamics to prove that the maximum work is done by the system if the process is reversible. [6]...

air at a temperature of 500c id compressed at a constant pressure of 1.2mpa from a...

air at a temperature of 500c id compressed at a constant pressure of 1.2mpa from a volume of 2cu meters to volume of 0.4 cu meters. If the initial internal energy decrease 4820kj find a. The work done during the reversible process b. The heat transfered c. The change of enthalpy.

At a given latitude, ocean water in the so-called "mixed layer" (from the surface to a...

At a given latitude, ocean water in the so-called "mixed layer" (from the surface to a depth of about 50 m) is at approximately the same temperature due to the mixing action of waves. Assume that because of global warming, the temperature of the mixed layer is everywhere increased by 0.1 ∘C, while the temperature of the deeper portions of the ocean remains unchanged.Estimate the resulting rise in sea level. The ocean covers about 70 %of the Earth's surface. Express...

Air is compressed from an initial state of 1 bar and 298.15K to a final state...

Air is compressed from an initial state of 1 bar and 298.15K to a final state of 5 bar and 295.15K by three different mechanically reversible processes in a closed system: • Heating at constant volume followed by cooling at constant pressure • Isothermal compression • Adiabatic compression followed by cooling at constant volume Show these processes in a PV diagram and calculate the work required, heat transferred, and the changes in internal energy and enthalpy of the air for...

air is compressed in an adiabatic and isentropic compressor from 14 psia and 60F to 210...

air is compressed in an adiabatic and isentropic compressor from 14 psia and 60F to 210 psia. Determine the outlet temperature [F] and the work consumed by this compressor per unit mas of air [Btu/lbm]. Assume constant specific heats at T=100F Please explain table look ups, thank you!