12th Class Chemistry Sample Paper Chemistry Sample Test Paper-5

  • question_answer
      State Henry's law and mention two important applications,                                                                                         [1]

    Answer:

      Henry's law states, "The partial pressure of the gas in vapour phase (p) is proportional to the mole fraction of the gas (X) in the solution." where,  is the Henry's law constant. If this is true variation of (p) with (X) can be shown Applications 1. To increase the solubility of  in soft drinks the bottle is sealed under high pressure. 2. In under water divers suffer from bends which are painful and dangerous to life. To avoid these tanks used by divers are filled with air diluted with He  and                                     [1]


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