[" A first order reation is "50%" completed in "],[20" minutes at "27^(@)C" and in "5" minutes at "],[47^(@)C" .The energy of activation of the "],[" reaction is "]

A first order reaction is 50% completed in 20 minutes at 27^(@) C and in 5 minutes at 47^(@) . The energy of activation of the reaction is :

A first order reaction is 50% completed in 20 minutes at 27^(@)C and in 5 min at 47^(@)C . The energy of activation of the reaction is

A first order reaction is 50% completed in 20 minutes at 27^(@) C and in 5 minutes at 47^(@) . The energy of activation of the reaction is : a) 43.85 KJ/mol b) 55.14 KJ/mol c) 11.97 KJ/mol d) 6.65 KJ/mol

A first order reaction is 50% completed in 20 minutes at 27°C and in 5 minutes at 47°C. The energy of activation of the reaction is :

A first order reaction is 50% complete in 20 minutes. What is its rate constant?