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Chemical Kinetics Quiz-1

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10 Questions

Popular Questions In Chemical Kinetics Quiz-1

  • In the reaction, 2NO+Cl22NOCl2NO+Cl_2 \longrightarrow 2NOCl  it has been found that doubling the concentration of both the reactants increases the rate by a factor of eight but doubling the chlorine concentration alone only doubles that rate. Which of the following statement is correct?

  • The rate of a gaseous reaction is halved when the volume of the vessel is doubled. The order of reaction is

  • For the reaction, A+BC+DA + B \longrightarrow C + D, if concentration of A is doubled without altering the concentration of B, the rate gets doubled. If the concentration of B is increased by nine times concentration of A, the rate gets tripled. The order of reaction is

  • The reactionX X\longrightarrow product follows first-order kinetics. In 40 minutes, the concentration of X changes from 0.1 M to 0.025 M, then the rate of reaction when concentration of X is 0.01 M is

  • Half-life of a reaction is found to be inversely proportional to the cube of initial concentration. The order of reaction is

  • Consider the reaction, 2A+B2 A + B \longrightarrow Products: When concentration of B alone was doubled, the half-life did not change. When the concentration of A alone was doubled, the rate increased by two times. The unit of rate constant for this reaction is

  • For the reaction RP,R\longrightarrow P, a graph of [R] against time is found to be a straight line with negative slope. What is the order of reaction?

  • The rate constant of nth n^{th} order has units

  • For a first-order reaction, tavt_{av} (average lifetime), t50%t_{50\%} and t75%t_{75\%} are in the order:

  • The rate constants k1k_1 and k2k_2 for two different reactions are 1016.e2000/T10^{16}.e^{-2000/T} and 1015.e1000/T10^{15}.e^{-1000/T} respectively. The temperature at which k1=k2k_1 = k_2 is