Chemistry - Chemical Kinetics Question with Solution | TestHub

ChemistryChemical KineticsOrder, molecularity and rate lawsHard2 minQB
ChemistryHardmatching list

Match the statements in Column 1 with the descriptions in Column 2.

Column 1Column 2
P Catalyst alters reaction rate1 Cannot be fractional or zero
Q Molecularity2 Proper orientation is not always present
R Second half-life of a first-order reaction3 By lowering activation energy
S e^(−Eₐ/RT)4 Same as the first half-life
T Energetically favourable reactions are sometimes slow5 Total probability is one
U Area under the Maxwell–Boltzmann curve is constant6 Fraction of molecules with energy at or above activation energy

Options:

Answer:
A
Solution:

A catalyst lowers activation energy (P-3); molecularity counts particles (Q-1); first-order half-lives are equal (R-4); the Arrhenius exponential tracks the activated fraction (S-6); orientation can limit favourable reactions (T-2); normalized probability integrates to one (U-5).

Stream:JEESubject:ChemistryTopic:Chemical KineticsSubtopic:Order, molecularity and rate laws
⏱ 2mℹ️ Source: QB

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