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Andrew's isotherm for a real gas 'X' ("M...

Andrew's isotherm for a real gas 'X' `("Molar mass" = 44 gm//"mole")` is given as:

At `22^(@)C`. if `(ec)/(eb)=(3)/(1)`, then at point 'e' if mole% of substance 'X' in vapour phase is 'Y' % then value of `''(Y)/(25)''` is

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The correct Answer is:
3
At `22^(@)C`
`("moles of X in vapour phase")/("moles of X in liquid phase")=(ec)/(eb)=(3)/(1)`
% in vapour phase `=(3)/(4)xx 100 =75%`
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