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ChemistryNEET 2024Concentration terms, Henry's and Raoult's laws

Solutions

The Henry's law constant (KHK_H) values of three gases (A, B, C) in water are 145, 2×10−52 \times 10^{-5} and 35 kbar, respectively. The solubility of these gases in water follows the order:

  1. A.B > C > A✓
  2. B.A > C > B
  3. C.A > B > C
  4. D.B > A > C

Solution

Henry's law p=KHxp = K_H x: a larger KHK_H means a lower mole fraction dissolved at a given pressure. Solubility therefore increases as KHK_H falls: B (2×10−52\times10^{-5}) > C (35) > A (145).

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