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Thermal data

This section contains useful data about thermal physics (heat energy).


General thermal data  
Absolute zero -273.16 oC
Molar gas constant 8.3 molK-1
Boltzmann's constant 1.38x10-23 JK-1
Triple point of water 273.15 K
Deep space temperature 3 K
Critical temperature of air 183 K
Helium point 2.186 K
Boiling point of sulphur 444.6 oC
Standard atmosphere 1.013x105 Pa
   
Thermal conductivity Wm-1K-1
Air at STP 0.024
Aluminium 201
Ashphalt 1.2
Brass 110
Breeze block 0.16 - 0.8 depending on density
Brick 0.48-0.7 depending on density
Cardboard 0.22
Chlorine 0.007
Concrete 1.83 (density 2400 kgm-3
Cork 0.05
Corrugated cardboard 0.047
Copper 385
Felt (roofing) 0.19
Glass 0.8-1.0
Iron 80
Methylated spirits 0.20
Polystyrene (expanded) 0.034
Silver 419
Snow (freshly fallen) 0.17
Thatch 0.08
Water 0.59
Wood 0.15
Zinc 385
   
Thermal expansion (linear) oC-1
Iron 1.2x10-5
Copper 1.7x10-5
   
Specific heat capacities Jkg-1K-1
Aluminium 800
Concrete 880
Copper 385
Glass 600
Ice 2100
Rock (marble) 880
Rubber 1600
Water 4200
   
Specific latent heat Jkg-1
Water (vaporisation) 2.26x106
Methyl alcohol (vaporisation) 1.12x106
Water (fusion) 3.34x105
   
r.m.s speeds of molecules at STP ms-1
Air 485
Bromine 206
Carbon dioxide 392
Helium 1303
Hydrogen 1838
Oxygen 461


 
 
 
© Keith Gibbs 2013