A perfectly stirred tank is initially filled with 1200 kg solution [T(0)= 70 Cl Three streams enters this tank: Stream-1(m,=2.6 kg/min, T1=55C, CP1=2.4 kj/kg.C). Stream-2 (m2-3.4 kg/min, T2=28 C, Cp2-4.2 kj/kg.C). Stream-3 [m3-4 kg/min, T3=75+10exp(-0.05t), T3 in C, t in minutes, Cp3=3kj/kg.C]. A single stream (m4-10 kg/min, Cp4=3.2 kj/kg.C ) leaves the tank. Cp of the solution in the tank at any instant of time is assumed to be also Cp=3.2 kj/kg C. Which of the following diff. equations describes the variation in the temperature, T (C) of the solution in the tank with time t (minutes). Ltfen birini sein. adT/dt+0.0053T=0.628 + 0.0313exp(-0.05t) b.dT/dt+0.0083T=0.428 + 0.0313exp(-0.05t) cdT/dt+0.0063T=0328 +0.0413exp(-0.05t) d.dT/dt=0.0073T-0.528 +00313exp(-0 05t) edT/dt+0 0043T=0.228 +0.0413exp(-0.05t)