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If density of vapours of a substance of ...

If density of vapours of a substance of molar mass `18 gm at 1 atm` pressure and`500K` is `0.36 kg m^(-3)`, then calculate the value of `Z` for the vapours. (Take `R = 0.082 L atm mole^(-1)K^(-1))`

A

`(41)/(50)`

B

`(50)/(41)`

C

1.8

D

0.9

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B
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