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Density of the vapour of a substance at ...

Density of the vapour of a substance at 1 atm and 500K is 0.36 `Kg*m^(-3)`. The vapour effuses through a hole at a rate of 1.13 times faster than `O_(2)` under same conditon. (i) Determine (a) molar mass (b) molar volume (c) compression factor (Z) of the vapour nand (d) which forces among the gas molecules are dominating-attractive or repulsive? (ii) if vapour behaves ideally at 1000K, find average translational kinetic energy of a molecule.

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