For the Arrhenius relationship between rate constant and te…

Physics NEET Full Syllabus Mock Test 180 Question New Syllabus Mock Test - 11 PCB MCQ (Single Correct)

For the Arrhenius relationship between rate constant and temperature, analyze the following statements and determine which one is incorrect:

If a reaction has zero activation energy, its rate constant remains unaffected by changes in temperature.

When the rate constant varies strongly with temperature, the activation energy is high.

Negative activation energy is implied if rate constant decreases with increase in temperature.

Stronger temperature dependence of the rate constant always means smaller activation energy.

Text Solution

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The correct answer is:

Arrhenius:

• If (no T- dependence)

• If decreases as T increases, slope implies .

• Stronger T-dependence means larger slope higher , not smaller → is incorrect.

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