The liquid-phase reaction A --> 2B+C takes place in a well-mixed, constant volume 125 L batch reactor. At first, the reactor contains only A with an initial total mole (NA) of 10 mol. The rate of destruction of A is given as -ra=kCA9.52 (the rate is the rate constant multiplied by the concentration of A that is raised to a power), where CAENA/V. After 5.0 minutes, only 2.5 moles of A remain. What is the value of the rate constant, 'k' (in hr-?), for the reaction? Please provide your answer to one decimal place.