Question

35.
The density of the vapour of a substance at 1 atm pressure and 500 K is 0.36 kg m". The
vapour effuse through a small hole at a rate of 1.33 times faster than oxygen under the same
conditions
[UIT 2001)
Determine it's molecular mass.
(b) 22
(c) 30
(d) 5
Cal To​

Answer 1

The density of the vapour of a substance at 1 atm pressure and 500 k is 0.36 kg m-3. The vapour effuses through a small hole at a rate of 1.33 times faster than oxygen under the same condition. (a) Determine (i) Molecular weight, (ii) molar volume, (iii) Compression factor (Z) of the vapour and (iv) Which forces among the gas molecules are domination, the attractive or the repulsive? (b) If the vapour behaves ideally at 1000 K, determine the average translational kinetic energy f a molecule.

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