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What factor affects the rate or equilibrium constant of reactions in 'd- and f-Block Elements'?

medium MCQ Class 12 · Chemistry · d- and f-Block Elements
  1. Temperature, reactant concentration, pressure, and catalyst presence
  2. Color of the storage container only
  3. Gravitational pull of the earth
  4. Sound wave intensity
Answer
Temperature, reactant concentration, pressure, and catalyst presence

The correct answer is Temperature, reactant concentration, pressure, and catalyst presence — Catalysts lower the activation energy barrier without altering equilibrium constant .

Step-by-step solution

  1. Arrhenius equation shows rate constant increases exponentially with temperature.
  2. Catalysts lower the activation energy barrier without altering equilibrium constant .

Concept tested: Chemical Kinetics & Factors

Published · How this solution was prepared and checked

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