1.

25 g of each of the following gases are taken at 27^(@)C and 600 mm pressure.Which of these will have the least volume?

Answer»

HBr
HCl
HF
HI

Solution :Ideal gas EQUATION is PV=nRT
If pressure and TEMPRATURE is same for all the gases then V`prop`n(From above equation)
n=no. of moles of the gas `=(WT.)/(M.wt.)`
From the options,HI has more molecular weight than remaining gases,so it has LEAST VOLUME.


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