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WAEC Chemistry 2019 Objective — Question 37

Question 37 of 50 from the West African Examinations Council (WAEC) Chemistry 2019 Objective paper, with the correct answer and a full explanation.

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In a mixture of gases which do not react chemically together, the pressure of the individual gas is

  • A. atmospheric pressure
  • B. vapour pressure
  • C. total pressure
  • D. partial pressureCorrect

Explanation

The pressure exerted by one gas in a mixture of non-reacting gases is called its partial pressure; the sum of all partial pressures gives the total pressure.

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