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# The mixing tank shown here initially contains 50kg of water at 25 degree C.

The mixing tank shown here initially contains 50kg of water at 25 degree C. Suddenly the two inlet valves and the single outlet valve are opened, so that two water streams, each with a flow rate of 5kg/min, flow into the tank, and a single exit stream with a flow rate of 10kg/min leaves the tank. The temperature of one inlet stream is 80 degree C, and that of the other is 50 degree C. The tank is well mixed, so that the temperature of the outlet stream is always the same as the temperature of the water in the tank.compute the steady-state temperature that will finally be obtained in the tank.

Solution: At any time t, let the temperature of the tank is T and for time duration dt, we can write thechange in tank temperature dT Integrating temperature T from 25 to T and time t from 0 to t...