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

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.

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 20 minutes. What is its rate constant?

A first order reaction is 50% complete in 10 minutes The rate constant of the reaction is

A first order reaction is 20% complete in 5 minutes. Calculate the time taken for the reaction to go to 60% complete.

A first order reaction is 20% complete in 10 minutes. Calculate the time taken for the reaction to go to 80% completion.