Rate of formation of SO3 in the reaction 2SO2 + O2 → 2SO3 is 2 moles min-1. Hence rate of disappearance of SO2 will be:
Correct answer: A. 2 moles min-1
- A. 2 moles min-1
- B. 4 moles min-1
- C. 8 moles min-1
- D. 3 moles min-1
Explanation
Stoichiometric ratio of SO2 : SO3 = 2 : 2 = 1 : 1 Rate of formation of SO3 = 2 moles min -1 As the ratio is 1 : 1 ∴ rate of formation of SO3 = rate of disappearance of SO2 Rate of disappearance of SO2 = 2 mole min-1
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About Reaction Kinetics
Reaction kinetics relates reaction rate to concentration, temperature, surface area and catalysts. Questions cover rate laws, reaction order, rate constants, activation energy and the activated complex, including how a catalyst lowers the activation energy without changing the overall energy change or equilibrium position.
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