1.

    A reaction has a rate constant 'k' at temperature T₁ and k' at T₂ (T₂ > T₁). If the activation energy is Ea, which expression correctly relates k, k', T₁, and T₂ according to the Arrhenius equation?

    A

    ln(k/k)=(Ea/R)((1/T1)(1/T2))ln(k'/k) = (Ea/R)((1/T_1) - (1/T_2))

    B

    ln(k/k)=(Ea/R)((1/T2)(1/T1))ln(k'/k) = (Ea/R)((1/T_2) - (1/T_1))

    C

    ln(k/k)=(Ea/R)((1/T1)(1/T2))ln(k/k') = (Ea/R)((1/T_1) - (1/T_2))

    D

    k/k=exp((Ea/R)((1/T1)(1/T2)))k'/k = exp((Ea/R)((1/T_1) - (1/T_2)))

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    2.

    For a gaseous reaction, the units of rate of rate of reaction are

    A

    L  atm  s1{\rm{L }}\;{\rm{atm}}\;{{\rm{s}}^{ - 1}}

    B

    atm  s1{\rm{atm}}\;{{\rm{s}}^{ - 1}}

    C

    atm  mol1  s1{\rm{atm}}\;{\rm{mo}}{{\rm{l}}^{ - 1}}\;{{\rm{s}}^{ - 1}}

    D

    mol  s1{\rm{mol}}\;{{\rm{s}}^{ - 1}}

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    5.

    The rate constant of a first order reaction is 3imes1063 imes {10^{ - 6}} per second and initial concentration is 0.10  M.0.10\;{\rm{ }}M. Then the initial rate of reaction is

    A

    3imes106  ms13 imes {10^{ - 6}}\;m{s^{ - 1}}

    B

    3imes108  ms13 imes {10^{ - 8}}\;m{s^{ - 1}}

    C

    3imes107  ms13 imes {10^{ - 7}}\;m{s^{ - 1}}

    D

    3imes109  ms13 imes {10^{ - 9}}\;m{s^{ - 1}}

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