Chapter 117 of 2363 min read
Concentration terms, Henry's and Raoult's laws
Why this is asked: A higher Henry's law constant means lower gas solubility, not higher — an inverse relationship (p = KH·x) that's easy to flip under pressure. For non-ideal solutions, positive deviation from Raoult's law (weaker A–B interactions, e.g. ethanol–acetone) gives a minimum-boiling azeotrope, while negative deviation (stronger A–B interactions from H-bonding, e.g. chloroform–acetone) gives a maximum-boiling one — a pairing students often reverse.
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- •5 moles of liquid X and 10 moles of liquid Y make a solution having a vapour pressure of 70 torr. The vapour pressures of pure X and Y are 63 torr and 78 torr respectively. Which of the following is true regarding the described solution?
- •Match List I with List II.
Choose the correct answer from the options given below:List I (Example) List II (Type of solution) A. Humidity I. Solid in solid B. Alloys II. Liquid in gas C. Amalgams III. Solid in gas D. Smoke IV. Liquid in solid - •The Henry's law constant () values of three gases (A, B, C) in water are 145, and 35 kbar, respectively. The solubility of these gases in water follows the order:
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