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Q.

Which is the heaviest gas...?

Tags: heaviest gas
Asked by Jovial, 20 Jul '10 11:48 pm
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Answers (2)

 
1.

The heaviest gas at room temperature ( 75 F, 293.15 K) is WF6, or Tungsten Hexafluoride (297.83 g/mol, that's almost 10 times heavier than air!). It changes phase (becomes liquid) at 290.25 K, or about 62.78 F.
Answered by Arshad Khan, 21 Jul '10 01:06 am

 
  
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2.

Radon gas is the heaviest.
Answered by bhaskar erram, 21 Jul '10 12:06 am

 
  
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