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NEET2012ChemistryChemical KineticsActual

Activation energy (E_a ) and rate constants (k₁ . and .k₂ ) of a chemical reaction at two different temperatures (T₁ . and .T₂ ) are related by

Options

  1. Ak₂ k₁ =- E_a R ( 1 T₁ - 1 T₂ )
  2. Bk₂ k₁ =- E_a R ( 1 T₂ - 1 T₁ )
  3. Ck₂ k₁ =- E_a R ( 1 T₂ + 1 T₁ )
  4. DNone of the above

Correct answer

B. k₂ k₁ =- E_a R ( 1 T₂ - 1 T₁ )

Step-by-step solution

According to Arrhenius equation, activation energy (E_a ) and rate constants (k₁ . and .k₂ ) of a chemical reaction at two different temperatures ( T₁ and .T₂ ) are related as aligned k₂ k₁ & = E_a R ( 1 T₁ - 1 T₂ ) & =- E_a R ( 1 T₂ - 1 T₁ ) aligned

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