MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Physical ChemistryChemical kineticsPrevious Year Questions
What is the activation energy for a reaction if its rate doubles when the temperature is raised from 20°C to 35°C? (R = 8.314 J mol–l K–l) (NEET Kar. 2013)
A.269 kJ mol–1
B.34.7 kJ mol–1✓ Correct
C.15.1 kJ mol–l
D.342 kJ mol–1
Explanation
2 1 1 2 1 1 log 2.303 a E k k R T T 1 1 log 2 2.303 8.314 293 308 a E x 15 0.3 2.303 8.314 293 308 a E x x x 0.3 2.303 8.314 293 308 15 a E x x x x 1 1 34673 mol 34.7 mol J kJ
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