Q.

Which graph of the following represents the graph between $\log P$ (on Y-axis) and 1/T (on $X$ - axis) ?

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answer is B.

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Detailed Solution

The Clausius Clapeyron equation provides the mathematical relation:

$P = Ae (- \frac{Δ H}{RT})$

Taking log on both sides of this equation, we have-

$\log P = \log A - \frac{Δ H}{R T}$

Graph of $\log P$ vs $\frac{1}{T}$ would be obtained as a straight line with slope $- \frac{Δ H}{R}$ and intercept $\log A$ .

Hence, the required answer is option B).

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