Question

Match the following: \[ \begin{aligned} \text{J) Dalton’s law} & & i) \, \text{Diffusion} \\ \text{K) Fick’s law} & & ii) \, \text{Pressure exerted by a mixture of gases} \\ \text{L) Henry’s law} & & iii) \, \text{Gravitational settling} \\ \text{M) Stoke’s law} & & iv) \, \text{Gas-liquid phase transfer} \\ \end{aligned} \]

• A. J – ii; K – i; L – iv; M – iii
• B. J – iii; K – ii; L – i; M – iv
• C. J – ii; K – iii; L – iv; M – i
• D. J – i; K – iv; L – ii; M – iii

Hint:

- Dalton → pressure of gas mixtures.
- Fick → diffusion law.
- Henry → solubility and gas-liquid transfer.
- Stoke → particle settling velocity.

Answer 1

The Correct Option is A

Step 1: Dalton’s Law.
Dalton’s Law states that the total pressure of a gas mixture equals the sum of partial pressures of individual gases. So: \[ \text{Dalton’s law (J)} \; \longrightarrow \; \text{(ii) Pressure exerted by a mixture of gases} \]
Step 2: Fick’s Law.
Fick’s Law deals with molecular diffusion, where flux is proportional to the concentration gradient. So: \[ \text{Fick’s law (K)} \; \longrightarrow \; \text{(i) Diffusion} \]
Step 3: Henry’s Law.
Henry’s Law describes the equilibrium relation between gas concentration in liquid and its partial pressure in gas phase, i.e., gas-liquid transfer. So: \[ \text{Henry’s law (L)} \; \longrightarrow \; \text{(iv) Gas-liquid phase transfer} \]
Step 4: Stoke’s Law.
Stoke’s Law gives the settling velocity of spherical particles in a fluid under laminar conditions, i.e., gravitational settling. So: \[ \text{Stoke’s law (M)} \; \longrightarrow \; \text{(iii) Gravitational settling} \]
Step 5: Match and Verify.
\[ J \to ii, K \to i, L \to iv, M \to iii \] This corresponds to Option (A). Final Answer: \[ \boxed{\text{(A) J – ii; K – i; L – iv; M – iii}} \]