The irreversible reaction is carried out in a reactor that initially contains 1.5 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. If the resulting product solution leaves the reactor at 5.0 m3/h, obtain an expression for concentration of A as a function of time. The reaction is first order with k