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  3. Chemistry
  4. On increasing the pressure three fold, the rate of reaction of 2H2S+O2 xrightarrow products would increase :

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Q. On increasing the pressure three fold, the rate of reaction of $ 2{{H}_{2}}S+{{O}_{2}}\xrightarrow{{}} $ products would increase :

EAMCETEAMCET 2006Chemical Kinetics

Solution:

Rate $ =kp{{_{H}^{2}}_{_{2}s\times {{p}_{{{O}_{2}}}}}}=x $ On increasing the pressure 3 fold Rate $ =k{{[3p_{{{H}_{2}}s}^{2}]}^{2}}[3{{p}_{{{o}_{2}}}}] $ $ =k\times 9_{{{H}_{2}}s}^{2}\times 3{{p}_{{{o}_{2}}}} $ $ =k\times 27\times p_{{{H}_{2}}s}^{2}\times {{p}_{{{o}_{2}}}}=27x $ Hence, rate will increase 27 times.