Mock Test 1 — Chemical Kinetics

Rate of reaction depends on:

Half-life of zero order: $t_{1/2} = $:

Pseudo first order has order:

$E_a$ of catalyzed reaction:

Reaction at $300$ K has $k$ = $0.01$ s⁻¹; at $310$ K, $k$ approx (rate doubles per 10°):

Rate constant of $1$st order doesn't have units of:

Arrhenius pre-exponential factor $A$ represents:

Heterogeneous catalysis involves:

Slope of plot $\log k$ vs $1/T$:

Rate constant for elementary reaction is related to:

Order of reaction $\text{Rate} = k[A]^2[B]^{1/2}$ (rounded):

Half-life of first-order reaction with $k = 0.0693$ min⁻¹ (in min, integer):

Number of factors that affect rate constant (T being one main one):

Assertion (A): Half-life of first-order reaction is independent of initial concentration. Reason (R): $t_{1/2} = 0.693/k$ for first-order; depends only on rate constant.

Assertion (A): A catalyst lowers activation energy of both forward and reverse reactions equally. Reason (R): It provides an alternate path with reduced energy barrier, but doesn't change thermodynamics (ΔH or K).