States of Matter - Result Question 37

####37. A gaseous mixture was prepared by taking equal mole of CO and N2. If the total pressure of the mixture was found 1 atmosphere, the partial pressure of the nitrogen (N2) in the mixture is :

(a) 0.5atm

(b) 0.8atm [2011]

(c) 0.9atm

(d) 1atm

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Solution:

  1. (a) Given nCO=nN2

PCO+PN2=1atm

Partial pressure of a gas = mole fraction of gas × total pressure

PN2=nN2nCO+nN2×1=nN22nN2×1=12=0.5atm.



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