How fast does liquid nitrogen expand

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SUMMARY

Liquid nitrogen at -200 degrees Celsius expands significantly when heated, particularly when exposed to gases at approximately 3000 degrees Celsius. The expansion is not solely dependent on the temperature of the incoming gas but also on the rate at which it is introduced. Specifically, transitioning from liquid nitrogen at 73K to gas at 77K results in an expansion factor of about 180. Further heating from gas at 77K to gas at 3273K leads to an additional expansion factor of approximately 43, culminating in a total increase in specific volume by a factor of about 7700.

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strawmilk
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i would like to know how fast and how much liquid nitrogen (-200 degrees Celsius) expands when it is heated with gasses of about 3000 degrees Celsius
 
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Veeerrrrryyyyyy fast!
 
Without more info, we can't be any more specific than that. It isn't just a matter of how hot the gas going in is, but how fast it is percolated through (and therefore how fast energy is put in).
 
See posts #2 and 3 for how fast. As for how much - that can be easily estimated. In going from liquid at 73K to liquid at 77K, there is hardly any change in specific volume. In going from liquid to gas at 77K, there's an expansion by a factor of about 180. And in going from gas at 77K to gas at 3273K, there's a further expansion of a factor of about 43. The net increase in specific volume is thus, a factor of about 7700.
 

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