Editing Guide to Atmospherics (section)

==Physical Characteristics of Gases==
TL;DR
Gas flows from high pressure areas, to low pressure areas. Gas uses up more room when hot, less room when cold.

Ideal gas law: '''''PV = nRT'''''

Where '''R (ideal, or universal, gas constant) = 8.31''',  the following are linked by this equation. 


'''Pressure (P)''': Measured in kPa, [http://en.wikipedia.org/wiki/Pascal_(unit) kiloPascals], Pressure is lethal above 750 kPa's. A pressure in a room above 1000 kPa's necessitates internals to breathe properly.
<!-- We don't have a pressure cap on breathing air in general, just minimum O2. ~Scottzar -->


'''Volume (V)''': Another unseen variable, [http://en.wikipedia.org/wiki/Volume Volume] is how much the area/canister/tank or piped tank has space inside it. This helps dictate how much gas it can hold. Volume is essentially the 'mole divider' when converting between a canister/air pump to your tank; having a higher volume essentially makes the tank that much more efficient, proportionally, so an Extended Emergency Oxygen Tank has twice the contained air per kPa in comparison to a regular Emergency Oxygen Tank.


{| class="wikitable sortable mw-collapsible mw-collapsed"
|-
!Item
!Volume
|-
|[[File:AirTank.png]] Emergency Oxygen Tank
|style="text-align:right;"|3
|-
|[[File:Extended Emergency Oxygen Tank.png]] Extended Emergency Oxygen Tank
|style="text-align:right;"|6
|-
|[[File:Extended Emergency Oxygen Tank.png]] Double Emergency Oxygen Tank
|style="text-align:right;"|10
|-
|[[File:OxygenTank.png]] Oxygen Tank (blue/red)
|style="text-align:right;"|70
|-
|[[File:Plasma tank.png]] Plasma Tank
|style="text-align:right;"|70
|-
|[[File:Atmospheric_Pipe.png]] All pipes
|style="text-align:right;"|70
|-
|[[File:Gaspipe.png]] Pipe manifold
|style="text-align:right;"|105
|-
|[[File:Locker.png]] Locker
|style="text-align:right;"|200
|-
|[[File:Coffin.png]] Coffin
|style="text-align:right;"|200
|-
|Gas Pump (each side)
|style="text-align:right;"|200
|-
|Volumpe Pump (each side)
|style="text-align:right;"|200
|-
|Passive Gate (each side)
|style="text-align:right;"|200
|-
|Heat Exchanger
|style="text-align:right;"|200
|-
|Gas Filter
|style="text-align:right;"|200
|-
|Vent
|style="text-align:right;"|200
|-
|Scrubber
|style="text-align:right;"|200
|-
|[[File:PortableScrubber.png]] Portable Scrubber
|style="text-align:right;"|750
|-
|[[File:Canister.png]] Gas Canister
|style="text-align:right;"|1 000
|-
|[[File:Wire_1_1.PNG]] Tile / turf (any area)
|style="text-align:right;"|2 500
|-
|[[File:PortablePump.png]] Portable Pump
|style="text-align:right;"|1 000
|-
|[[File:Pressure Tank.png]] Unmovable pressure tank
|style="text-align:right;"|10 000
|-
|[[File:Huge Scrubber.png]] Huge scrubber
|style="text-align:right;"|50 000
|}


'''Moles (n)''': [http://en.wikipedia.org/wiki/Mole_(unit) Moles] are the amount of particles of a gas in the air. It is moles that cause odd effects with a certain chemical. As it dumps so many moles to a tile, to keep the pressure acceptable, the moles have to be very, very cold, causing the infectious effect. Moles can be calculated by a form of the ideal gas law. n=(P*V)/(R*T)


'''Temperature (T)''': Measures in K, [http://en.wikipedia.org/wiki/Kelvin Kelvin], Temperature above 360 K and below 260 K causes burn damage to humans. Bomb making usually relies on a temperature at or in excess of 90 000 K. Canisters rupture when the air surrounding them is over 1550 K.


'''Heat Capacity''': A gasmix has heat capacity, and it is calculated by taking into account the quantity of all of the gases in the air and their specific heat. Heat capacity defines how much energy it takes to raise the temperature of a gas. The normal air mix (%30 O2, %70 N2) has a specific heat capacity of about 20 which doesn't impede heat transfer very much. Fires spreads quicker in gases with low heat capacity, and slower in gases with high heat capacity. 

{| class="wikitable sortable mw-collapsible mw-collapsed"
|-
! Gas
! Heat capacity
|-
| O2
| style="width: fit-content; text-align:right;"| 20
|-
| N2
| style="width: fit-content; text-align:right;"| 20
|-
| CO2
| style="width: fit-content; text-align:right;"| 30
|-
| N2O
| style="width: fit-content; text-align:right;"| 40
|-
| Plasma
| style="width: fit-content; text-align:right;"| 200
|-
| Water Vapor
| style="width: fit-content; text-align:right;"| 40
|-
| Hypernoblium
| style="width: fit-content; text-align:right;"| 2000
|-
| Nitryl
| style="width: fit-content; text-align:right;"| 20
|-
| Tritium
| style="width: fit-content; text-align:right;"| 10
|-
| BZ
| style="width: fit-content; text-align:right;"| 20
|-
| Stimulum
| style="width: fit-content; text-align:right;"| 5
|-
| Pluoxium
| style="width: fit-content; text-align:right;"| 80
|-
| Miasma
| style="width: fit-content; text-align:right;"| 20
|}

'''Fire''': An effect caused by burning plasma, fire comes in two different forms of hotspot. It causes massive burn damage, and a strong fire will not be stopped by standard firesuits. Plumbing N2 into a room might work, but heavy firefighting is not the point of this section. Fire will ignite any form of combustibles in near tiles. Sufficiently hot fires use less oxygen as they rise in temperature. This is due to the fact that fires remove X plasma and X*(1.4-Y, Y< or = 1) oxygen. X CO2 is produced. Ideal Burnmix is: 10x more O2 than plasma, and with as high a temperature as can achieve.
<!-- Not too much more to say, but you're welcome to codebrowse for the variables I've indicated with x, y and similar. Hawk. -->


'''In short the colder the gas and the higher the container volume, the more moles you can fit inside.''' This is why hot gases clog the red waste pipes - they expand, allowing fewer moles to be transported.