Water enters a 2.00-m3 tank at a rate of 6.00 kg/s and is withdrawn at a rate of 3.00 kg/s. the tank is initially half full. (a) is this process continuous, batch, or semibatch? is it transient or steady state? (b) write a mass balance for the process (see example 4.2-1). identify the terms of the general balance equation (equation 4.2-1) present in your equation and state the reason for omitting any terms. (c) how long will the tank take to overflow?