Question

The degree of dissociation, $\alpha$ of $PC{I}_5$ at a given temperature is-

• A. Proportional to the pressure of the gas.
• B. Inversely proportional to the density of gas.
• C. Inversely proportional to the square root of the pressure of the gas.
• D. Inversely proportional to the square root of the density of the gas.

Answer 1

Answer: (C), (D)

The correct options are
C Inversely proportional to the square root of the pressure of the gas.
D Inversely proportional to the square root of the density of the gas.

The degree of dissociation of a gas is inversely proportional to the product P and density D of the gas.
$\alpha \propto \frac{1}{\sqrt{D\times P}}$.