question_answer 1)

  The pressure of a 1:4 mixture of dihydrogen and dioxygen enclosed in a vessel is one atmosphere. What would be the partial pressure of dioxygen? (a)\[0.8\text{ }\times \text{1}{{0}^{5}}\text{ }atm\]        (b) \[0.008N{{m}^{-2}}\]                               (c) \[8\times {{10}^{4}}N{{m}^{-2}}\]                 (d) 0.25 atm

Answer:

  (c) Partial pressure of \[{{O}_{2}}={{x}_{{{O}_{2}}}}\times p=\frac{4}{5}\times 1=0.8\,\,atm\] \[=0.8\times {{10}^{5}}N{{m}^{-2}}=8\times {{10}^{4}}N{{m}^{-2}}\]