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This is misleading. Helium has a higher conductivity and heat capacity than nitrogen per unit mass, but since helium has such low density, the heat capacity and
by NateyJay 10y ago
This is misleading. Helium has a higher conductivity and heat capacity than nitrogen per unit mass, but since helium has such low density, the heat capacity and conductivity per unit volume at atmospheric pressure is less than nitrogen.
- deleted 10y ago[deleted]
- jdietrich 10y agoWhile it's true that helium will have a lower practical heat capacity due to lower density, it still has far higher thermal conductivity than air at the same pressure. http://www.engineersedge.com/heat_transfer/thermal-conductivity-gases.htm http://www.engineersedge.com/heat_transfer/thermal-conductiv...
- NateyJay 10y agoYou're right, my mistake.
- JumpCrisscross 10y agoWhy does this chart show nitrogen < helium while the other is opposite?
- tedunangst 10y agoThat's relevant to the specific heat table, but not the conductivity table, no?
- NateyJay 10y agoYou're right, my mistake.
- kyriakos 10y agoIs it at atmospheric pressure though?