The irreversible reaction is carried out in a reactor that initially contains 2.5 m3 of solution with a concentration of 1 kmol of A per cubic meter of solution. A solution containing 0.50 kmol of A/m3 enters the tank at a rate of 10 m3/h and is mixed perfectly with the existing solution. The resulting product solution leaves the reactor at 5.0 m2/h. The reaction is first order with k = 0.2 hr"1. Calculate the initial da/dt. A. - 2.4 kmol/(h·m2)
B. - 2.6 kmol/(h·m2)
C. - 2.8 kmol/(h·m2)
D.- 2.2 kmol/(h·m3)
E. None of the given answers.