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A mixture of O2 and SO2 is confined in a vessel at equilibrium. Which statement describes the conditions that are true for the mixture?
I. The mass of SO2 is greater
II. The average molecular velocity of the O2 is greater
III. The average kinetic energy of the O2 is greater than the average kinetic energy of the SO2
IV. The temperature of both gases is the same.

a. I only
b. II only
c. III only
d. II and III only
e. II and IV only

  • Chemistry -

    e. II and IV
    Because the mass of O2 could be larger, and II and IV are right. So out of elimination, E is correct

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