Gas Laws: Part Three Major Aspects Of Diving

Table of Contents

Part One 3

Gas Laws 4

Part Two 5

Part Three 6

Part One

The very first part of the salvation of the submarine is getting all the exact information; this is where dive teams come in. Each dive team is a 4-member team who’s training is of top quality. These dive teams will be doing what is know as initial reconnaissance. Within these dives the team must look at three major aspects, firstly the conditions of the ship. This includes any parts of the ship that is broken either from impact or corrosion over time, also any strong points of the ship as well as the angle and orientation of the ship. This dive also required the team to take photos of the ship. The team will then returns to the surface and examine the photos;

These sections will be split between two dive teams of four, the first dive team will cover the condition and the photos of the submarine during their first dive and then will plot and map the submarine on their second dive. At the same time as this team is conducting their second dive the second dive team will be conducting a dive of finding the best points of attachment in order to prep the ship for its lift.

Dive team one will begin their first dive at 8am being down for 50 minutes. They will then break for 3 hours before going down again for another 95 minutes in total. When dive team one goes down for their second dive, dive team two will join them, dive team two will go down for 90 minutes then return to the surface after finding the best points of attachments.

The dive teams will be on the bottom for a maximum of 2 hours including residual nitrogen time, residual nitrogen time is the impact a previous dive can affect you before diving again, the process outgassing helps reduce residual nitrogen time but it can take many hours, this is where surface breaks help. During the surface break, your body off gasses a significant amount of residual nitrogen, which increases your maximum dive time for repetitive dives (Scuba Tutor,

This allows the divers to go to the correct distance (40m) without suffering from either nitrogen narcosis or oxygen toxicity.

Gas Laws

Boyle’s Law states that the volume of a gas at a fixed temperature is inversely proportional to the pressure exerted on the gas, can also be stated that this is a constant.

P_1 V_1=P_2 V_2

Ideal Gas Equation is one of the most important laws; it combines all major gas laws under a set of standard conditions, pressure, gas, volume and temperature (Sparks Notes , 2007).

PV=nRT

Henry’s Law states that the amount of a given gas dissolved in a given type and volume of liquid is directly proportional to the partial pressure of that gas in equilibrium with that liquid.

P=KC

Graham’s Law states that the rate of diffusion of a gas is inversely proportional to the square root of its density under given conditions of temperature and pressure.

(Rate Gas A)/(Rate Gas B)=√(MMGasB/MMGasA)

Dalton’s Law states that the total pressure of a gas in a container is the sum of the partial pressures of the individual gases in the container (Helmenstine, 2013).

P_T=P_1+P_2+P_3+⋯

Combined Gas