JEE Main Chemistry question

ChemistryChemical KineticsJEE Main

From the following data, the activation energy for the reaction (cal/mol):

| | | | |---|---|---| | 769 | | 2.9 | | 667 | | 1.1 |

Answer: (A)

Solution

at both points gives two equations; subtracting:

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Question ID VK-144618