1) SCUBA divers must be very careful with selecting gases they use while diving, this is because of the increased pressure while diving. Pure Oxygen is actually poisonous at a depth of only 4 meters, and regular air would be poisonous at 57 meters. To solve this, for deeper dives, divers actually begin to introduce inert gases into their tanks. (Hint remember partial pressures are fractions of the TOTAL pressure.) (Hint 2: this might help, see in attached image) a. While many reasons can be the cause of Oxygen toxicity what is one reason in relation to hemoglobin that might explain this toxicity? b. How might the introduction of inert gases help divers dive deeper?
Ideal and Real Gases
Ideal gases obey conditions of the general gas laws under all states of pressure and temperature. Ideal gases are also named perfect gases. The attributes of ideal gases are as follows,
Gas Laws
Gas laws describe the ways in which volume, temperature, pressure, and other conditions correlate when matter is in a gaseous state. The very first observations about the physical properties of gases was made by Robert Boyle in 1662. Later discoveries were made by Charles, Gay-Lussac, Avogadro, and others. Eventually, these observations were combined to produce the ideal gas law.
Gaseous State
It is well known that matter exists in different forms in our surroundings. There are five known states of matter, such as solids, gases, liquids, plasma and Bose-Einstein condensate. The last two are known newly in the recent days. Thus, the detailed forms of matter studied are solids, gases and liquids. The best example of a substance that is present in different states is water. It is solid ice, gaseous vapor or steam and liquid water depending on the temperature and pressure conditions. This is due to the difference in the intermolecular forces and distances. The occurrence of three different phases is due to the difference in the two major forces, the force which tends to tightly hold molecules i.e., forces of attraction and the disruptive forces obtained from the thermal energy of molecules.
1) SCUBA divers must be very careful with selecting gases they use while diving, this is
because of the increased pressure while diving. Pure Oxygen is actually poisonous at
a depth of only 4 meters, and regular air would be poisonous at 57 meters. To solve
this, for deeper dives, divers actually begin to introduce inert gases into their tanks.
(Hint remember partial pressures are fractions of the TOTAL pressure.) (Hint 2: this
might help, see in attached image)
a. While many reasons can be the cause of Oxygen toxicity what is one reason in
relation to hemoglobin that might explain this toxicity?
b. How might the introduction of inert gases help divers dive deeper?
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