Activated complex is formed due to________________?
Correct answer: B. Effective collision
- A. Pressure
- B. Effective collision
- C. Ineffective collisions
- D. Temperature
Explanation
An activated complex forms when reactant particles undergo an effective collision with suitable energy and orientation, allowing them to reach the transition state. Students may choose temperature because increasing temperature produces more energetic collisions, but temperature itself does not form the complex; an effective collision does.
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About Activation Energy and Activated Complex
Activation energy is the minimum energy reactant particles need to form the activated complex, or transition state, during a reaction. Energy profile diagrams show the forward and reverse activation energies, while catalysts provide an alternative pathway with lower activation energy without changing the reaction enthalpy.
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