Gas Chart Properties Flashcards
Chemical formula for water?
H20
Chemical formula for natural gas (methane)?
CH4
Chemical formula for propane?
C3H8
What are the physical properties of methane and propane?
odorless, colorless, tasteless
Density Lb/Imp gal. (liquid) is water?
10 lb/imp gal.
Density Lb/Imp gal. (liquid) is methane (natural gas)?
4.24 lb/imp gal.
Density Lb/Imp gal. (liquid) is propane?
5.1 lb/imp gal.
Density LG (liquid gas) / m3 is water?
1.29kg/m3 air
Density LG (liquid gas) / m3 is methane (natural gas)?
0.774 kg/m3 air
Density LG (liquid gas) / m3 is propane?
1.935 kg/m3 air
Specific gravity of water?
1
Specific gravity of methane (natural gas)?
0.424
Specific gravity of propane?
0.51
Specific gravity vapor of water?
1
Specific gravity vapor of methane (natural gas)?
0.6
Specific gravity vapor of propane?
1.5
Vapor expansion-cuft vapor / cuft liquid of methane (natural gas)?
600 (600:1)
Vapor expansion-cuft vapor / cuft liquid of propane?
270 (270:1)
Vapor expansion lbs liquid/cuft of propane?
8.5 (8.5:1)
Boiling point of water?
212F / 100C
Boiling point of methane (natural gas)?
-260F / -162C
Boiling point of Propane?
-44F / -42C
Calorific value of methane (natural gas)?
1000 Btu/cuft
Calorific value of propane?
2500 Btu/cuft
Calorific value Btu/imp gal liquid of methane (natural gas)?
96,000 Btu/imp gal
Calorific value Btu/imp gal liquid of propane?
109,560 Btu/imp gal
Calorific value KJ/L of methane (natural gas)?
22,350 KJ/L
Calorific value KJ/L of propane?
25,510 KJ/L
Calorific value KJ/m3 of methane (natural gas)?
37,240 KJ/m3
Calorific value KJ/m3 of propane?
93,650 KJ/m3
Sensible Heat of water is ?
1Btu / lb F 4.2 KJ / KgC
Sensible Heat of ice?
0.5 Btu / lb *F 2 KJ / Kg *C
Latent Heat of steam
0.5 Btu / lb *F 2 KJ / Kg *C
Latent Heat of fusion of water?
144 Btu / lb*F 335 KJ / Kg *C
Latent Heat of vaporization of water?
970 BtU / lb*F 2257 KJ / Kg *C
Flammability range (LEL:UEL) of methane (natural gas)?
5-15 %
Flammability range (LEL:UEL) of propane?
2.3 - 9.5 %
Ignition temperature of methane (natural gas)?
1300F 700C
Ignition temperature of propane?
920F 495C
Flame temperature of methane (natural gas)?
3350F 1843C
Flame temperature of propane?
3500F 1927C
Theoretical air required (air : fuel) of methane (natural gas)?
10:1
Theoretical air required (air : fuel) of propane?
25:1
Complete combustion of methane (natural gas) CH4 ?
CO2 + 2 H2O + 8 N2 + heat or light
Complete combustion of propane C3H8 ?
3 CO2 + 4 H2O + 2 ON2 + heat or light
The flame speed of methane (natural gas)?
26 inches/second 660 millimeters/second
The flame speed of propane?
32 inches/second 813 millimeters/second