The liquid-phase reaction A2B+C takes place in an well mixed, constant volume 125L batch reactor. At first the reactor contains only A with a initial total moles (NA0) of 12 mol. The rate of destruction of A is given as rA=kCA0.76 (the rate is the rate constant multiplied by the concentration of A that is raised to a power), where CA=NA/V. After 5.0 minutes, only 2.5 moles of A remain. What is the value of the rate constant, ' k ' (in hr1 ), for the reaction? Please provide your answer to one decimal place