A rigid tank contains 0.03m^3 of H20 at 100k Pa and 25 deg Celsius. Then a valve is opened and H2O is drained from the tank until only one-fourth of the original massof H2O remains. The mass flow rate of H2O flowing through the valve during this process is 2.5kh/s. Determine:
A) The final mass of H2O in the tank
B) The time required for the process described above
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