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Five grams of each of the following gase...

Five grams of each of the following gases at `87^(@)C` and 750mm pressure are taken. Which of them will have the least volume?

A

HF

B

HCl

C

HBr

D

HI

Text Solution

Verified by Experts

The correct Answer is:
D
`V alpha n` (constant T and P) Avogadro .s law but `n alpha (1)/( MW)` (as maass of each gas is 5 gram )
The MW increase in the order `HF lt HCl lt HBr lt HI.` Thus 5g HI with have the least number of molecules, hence least volume.
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