The number of molecules with energy grea...

The number of molecules with energy greater than tha threshold enegy for a reaction increases five fold by a rise of temperature from `27^(@)C` to `42^(@)C`. Its energy of activation in J/mol is ___________. (Take `ln5=1.6094,R=8.314" J mol"^(-1)K^(-1)`)

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The rate constant of a reaction increases by five times on increase in temperature from 27^@C to 52^@C . The value of activation energy in kJ "mol"^(-1) is ______ (Rounded-off to the nearest integer)

The rate of a reaction decreased by 3.555 times when the temperature was changed from 40^(@)C to 30^(@)C . The activation energy (in kj mol^(-1) ) of the reaction is ______. Take : R = 8314 J mol^(-k) K^(-1) In 3.555 = 1268

The rate of a reaction triples when temperature changes from 50 to 100^(@)C. Calculate the energy of activation for such a reaction (R=8.314" J K"^(-1)" mol"^(-1))

The rate of reaction triples when temperature changes form 20^(@)C to 50^(@)C . Calculate the energy of activation for the reaction (R= 8.314JK^(-1)mol^(-1)) .

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 K"^(-))

The rate of a reaction increases four times when the temperature changes from 300K to 320 K. Calculate the energy of activation of the reaction. (R=8.314JK^(-1)mol^(-1))

A reaction has an activation energy of 209 KJ "mol"^(-1) . The rate increase 10-fold when the temperature is increased from 27^(@)C to X ""^(@)C . The temperature X is closed to [Gas constant, R = 8.314 J "mol"^(-1) K^(-1) ]

JEE MAINS PREVIOUS YEAR-JEE MAINS 2020-CHEMSITRY

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