Moderate

For a chemical reaction to occur:

Correct answer: C. Reacting molecules must be properly oriented and energy more than or equal to Ea

  • A. The vessel shall be open
  • B. Reacting molecules should have less energy than Ea at time of collision
  • C. Reacting molecules must be properly oriented and energy more than or equal to Ea
  • D. The reacting molecules must not collide with each other

Explanation

The amount of energy required for effective collisions is called activation energy which is required for effective collision along with proper orientation.

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About Reaction Kinetics

Reaction kinetics relates reaction rate to concentration, temperature, surface area and catalysts. Questions cover rate laws, reaction order, rate constants, activation energy and the activated complex, including how a catalyst lowers the activation energy without changing the overall energy change or equilibrium position.

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