what is the activation energy for a reaction if its rate doubles when the temperature is raised from 200 K to 400 K ?

What is the activation energy for a reaction if its rate doubles when the temperature is raised from 20^@C to’ 35^@C ? (R= 8.3154 J mol^-1 K^-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"^(-1).K^(-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"^(-))

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"^(-))

What is the activation energy (KJ/mol) for a reaction if its rate constant doubles when the temperature is raised from 300 K to 400 K ? (R="8.314 J mol"^(-1)"K"^(-1))