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Twelfth Grade (Grade 12) Kinetics and Equilibrium Questions

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Grade 12 Kinetics and Equilibrium
The decomposition of gaseous nitrogen pentoxide is a reaction of the following order:
  1. First order
  2. Second order
  3. Fractional order
  4. Zero order
Grade 12 Kinetics and Equilibrium
Which of the following substances acts as a promoter in the synthesis of NH3 involving Fe as the catalyst?
  1. Al2O3
  2. H2SO4
  3. KMnO4
  4. V2O5
Grade 12 Kinetics and Equilibrium
For the equilibrium, A↔2B+Heat, the number of A molecules increases if
  1. volume is increased.
  2. temperature is increased.
  3. catalyst is added.
  4. concentration of 2B is decreased.
Grade 12 Kinetics and Equilibrium
Which of the following parameters does not affect the position of equilibrium in a chemical reaction?
  1. concentration
  2. pressure
  3. volume
  4. catalyst
Grade 12 Kinetics and Equilibrium
Consider the following gas-phase reaction

aA(g) + bB(g) ↔ cC(g) + dD(g)

What is its partial pressure equilibrium constant expression?
  1. Kp=(pC)c(pD)d
  2. Kp=(pA)a(pB)b
  3. Kp=(pC)c(pD)d/(pA)a(pB)b
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