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Which graph shows zero activation energy...

Which graph shows zero activation energy?

A

B

C

D

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The correct Answer is:
D
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Assertion: Reaction does not have zero activation energy Reason: If E_a = 0 , A to Arrhenius equation, K=A.e^(-Ea//RT) = Ae^(0) = A i.e, Rate constant = Collision frequency which cannot be true E_(a) ne 0

BRILLIANT PUBLICATION-CHEMICAL KINETICS -LEVEL II
  1. Which graph shows zero activation energy?

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  2. Select the incorrect statement:

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  3. The reaction A rarrB+C has rate constant 1xx10^(-3) Ms^(-1). If one s...

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  4. For an endothermic reaction where DeltaH represents the enthalpy of re...

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  5. In a first order reaction, the concentration of reactant decreases fro...

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  6. For the elementary reaction M rarr N, the rate of disappearance of M ...

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  7. According to the collision theory of chemical reactions

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  8. The activation energy for a simple chemical reaction A rarr B is E(a) ...

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  9. The reaction 2NO(g)+O(2)(g)rarr2NO(2)(g) is of first order. Ifvolume ...

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  10. For the equilibrium, A(g)rarrB(g), triangleH is - 40 kJ mol^(-1) . If ...

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  11. The rate law for a reaction between the substances A and B is given by...

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  12. The kinetic data for the given reaction A (g) + 2 B (g) overset(k)rarr...

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  13. Reaction A + B rarr C + D follows rate law, r = k[A]^(1//2) [B]^(1//2)...

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  14. The reaction A(g) rarr B(g) + 2C(g) is a first order reaction with ra...

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  15. For a first order homogenous gaseous reaction A rarr2B +C if the tota...

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  16. The gaseous decomposition reaction, A(g) rarr 2B(g) + C(g) is observed...

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  17. A gaseous compound A reacts by three independent first order processes...

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  18. A compound 'A' dissociate by two parallel first order paths atcertain ...

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  19. The reaction cis- X underset(k(b))⇌overset(k(f)) trans-X is first o...

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  20. For first order parallel reactions k(1) and k(2) are 4 and 2 min^(- ...

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  21. Consider the following first order competing reactions: X overset(k(...

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