Stream 1 Stream 2 12 Stream w A perfectly stirred, constant-volume tank, V=0.5 m' has two input streams both consisting of the water having a density of 1000 kg/m and a specific heat of 4.18 J/g-C which is approximately constant at the given temperature range. The mass flow rate at stream I, wi = 500 kg/min and a temperature, T, = 25C and at stream 2, mass flow rate , W2= 200 kg/min and a temperature, T2 = 55C. 1.1 (10 points) What is the temperature of stream 3, T,? 1.2 (10 points) A heater was introduced which supply heat constantly in the amount of 50 kW. what will be the new Tz after a long period after the change was introduced? 1.3 (15 points) Develop an equation to relate the final temperature and time, T3 vs. t, when the change in part (1.2) has been implemented. 1.4 (5 points) using the equation develop in part (1.3) compute for the final temperature T3, at t= 10 min after the change has been implemented