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The quantitative relationship between t...

The quantitative relationship between the vapor pressure `p` of a liquid and the absolute temperature `T` is given by the Clausius - Clapeyron equation,
`In_(p) = - (Delta_(vap)H)/(RT) + C`
where `In` is the natural logarithm , `R` is the gas constant `(8.314 JK^(-1) mol^(-))` , and `C` is a constant . The plot of

A

`In_(p)` against `1//T` will be a straight line

B

`In_(p)` against `T` will be a straight line

C

`In_(p)` against `1//T` will be a parbola

D

`In_(p)` against `T` will be a parabola

Text Solution

Verified by Experts

The correct Answer is:
A
The Clausius -Clapeyron equation has the form of the linear equation `y = mx + b`:

By plotting `In_(p)` versus `1//T`, we obtain a straight line with slope (which is negative) equal to `-Delta_(Vap) H//R`.
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