question_answer

A mixture of 0.50 mole of H2 and 0.50 mole of \[\text{S}{{\text{O}}_{\text{2}}}\] is introduced into a 10.0 L container at \[25{}^\circ C\]. The container has a 'pinhole' leak. After a period of time the partial pressure of \[{{\text{H}}_{\text{2}}}\] in the remaining mixutre

A)  exceeds that of \[\text{S}{{\text{O}}_{\text{2}}}\]

B)  is equal to that of \[\text{S}{{\text{O}}_{\text{2}}}\]

C)  is less than that of \[\text{S}{{\text{O}}_{\text{2}}}\]

D)  is the same as in the original mixture