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23 February, 19:30

Which best defines partial pressure in a mixture of gases?

O pressure that is exerted by all the gases of a mixture on the container

O pressure that is exerted by one gas as if it occupied a container by itself

O half of the pressure that is exerted by the gases of a mixture on the container

sum of the individual pressures that are exerted by two or more gases

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Answers (2)
  1. 23 February, 20:03
    0
    sum of the individual pressures that are exerted by two or more gases

    Explanation:

    According to Dalton law of partial pressure,

    The total pressure exerted by mixture of gas is equal to the sum of the partial pressure of individual gases.

    Mathematical expression:

    P (total) = P₁ + P₂ + ... P (n)

    P₁ = Partial pressure of one gas

    P₂ = Partial pressure of second gas

    Pn = Partial pressure of number of gases

    For example:

    A gaseous mixture consist of He and Ne gas. The pressure exerted by He is 2 atm while neon exerted 4 atm. The total pressure will be:

    P (total) = P (He) + P (Ne)

    P (total) = 2 atm + 4 atm

    P (total) = 6 atm
  2. 23 February, 22:49
    0
    sum of the individual pressures that are exerted by two or more gases
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