What is the mixture of gases used by divers?

The mixture of gases used by deep-sea divers is helium-oxygen.

How do the gas laws affect scuba diving?

Henry’s law The implication of this law for SCUBA diving is that as depth increases (and therefore pressure) the amount of a gas dissolved in the diver’s blood will also increase. Oxygen is consumed by the body’s physiological processes, but nitrogen is physiologically inert.

Why must divers consider gas solubility?

Why must divers consider gas solubility? The cold temperatures they encounter on their dives can dangerously increase the dissolved gas in their bodies. The extreme pressure they encounter on their dives can dangerously decrease the dissolved gas in their bodies.

Why do divers breathe nitrogen?

Nitrogen (N2) is a diatomic gas and the main component of air, the cheapest and most common breathing gas used for diving. It causes nitrogen narcosis in the diver, so its use is limited to shallower dives. Nitrogen can cause decompression sickness.

Why do divers have to ascend slowly?

Nitrogen in a diver’s body will expand most quickly during the final ascent, and allowing his body additional time to eliminate this nitrogen will further reduce the diver’s risk of decompression sickness. Divers should slowly ascend from all dives to avoid decompression sickness and AGE.

What causes the Benz?

Decompression sickness: Often called “the bends,” decompression sickness happens when a scuba diver ascends too quickly. Divers breathe compressed air that contains nitrogen. At higher pressure under water, the nitrogen gas goes into the body’s tissues.

Why don t scuba divers lungs collapse as they descend?

If divers descend without scuba gear, the amount of gas contained in their body cavities is constant and the volume of these cavities decreases as the surrounding water pressure becomes greater. However, If they don’t, the pressure of the air in their lungs will cause their lungs to expand.