Surface Chemistry Question 6

Question 6 - 30 January - Shift 2

The graph of $\log \frac{X}{m}$ vs $\log p$ for an adsorption process is a straight line inclined at an angle of $45^{\circ}$ with intercept equal to 0.6020 . The mass of gas adsorbed per unit mass of adsorbent at the pressure of $0.4 atm$ is $\times 10^{-1}$ (Nearest integer)

Given : $\log 2=0.3010$

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Answer: (16)

Solution:

$\log \frac{x}{m}=\log k+\frac{1}{n} \log P$

$m n$

$\underline{1}=\tan 45^{\circ}=1$

n

$\log k=0.6020=\log 4$

$\Rightarrow K=4$

$\therefore \frac{x}{m}=K \cdot P^{1 / n}$

$\frac{x}{m}=4(0.4)=1.6$

$m$

$\underline{X}=1.6=16 \times 10^{-1}$

$m$