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Consider the van der Waals constants, a ...

Consider the van der Waals constants, a and b, for the following gases.
`{:("Gas","Ar","Ne","Kr","Xe"),(a//"(""atm dm"^(3)"mol"^(-2)")",1.3,0.2,5.1,4.1),(b//"("10^(-2)"dm"^(6)"mol"^(-1)")",3.2,1.7,1.0,5.0):}`
Which gas is expected to have the highest critical temperature?

A

`Kr`

B

`Ne`

C

`Xe`

D

`Ar`

Text Solution

Verified by Experts

The correct Answer is:
A
`"Critical temperature "=(8a)/(27Rb)`
Value of `(a)/(b)` is highest for Kr. Therefore, Kr has greatest value of critical temperature.
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