A first order reaction is `50%` complete in 25 minutes at 350 K. Calculate activation energy of the reaction.

A first order reaction is 50% complete in 50 minutes at 300 K and the same reaction is again 50% complete in 25 minutes at 350K Calculate activation energy of the reaction.

A certain reaction is 50% complete in 20 minutes at 300K and the same reaction is again 50% complete in 5 minutes at 350K. Calculate the activation energy if the reaction is of first order.

A certain reactions is 50% complete in 20 minutes at 300 K and the same reaction is again 50% completely in 5 minutes at 350 K. Calculate the activation energy if the reactions is of first order.

A certain reaction is 50% complete in 20 minutes at 300K and the same reaction is again 50% complete in 5 mins at 350K. Calculate the activation energy if the reaction is of first order.

At 300K, a certain reaction is 50% complete in 20 minutes. At 350K, the same reaction is 50% complete in 5 minutes. Calcualte the activation energy for the reaction.

A first order reaction is 50% complete in 30 minutes at 27^@ C. Calculate the rate constant of the reaction at 27^@ C.