Please choose the correct answer for each question:
1. A reacts with B to produce C. If the reaction rate R = - k [A]2[B]2. The reaction has an overall reaction order of ___. And the reaction is ___ order with respect to B.
A. 4, 2nd; B. 2, 2nd; C. 4, 4th ; D. 2, 4th
2. Which of the following is NOT a correct description?
A. Knowledge in
B. Mixing is complete in a batch reactor;
C. According to the Henry’s law, the level of dissolved oxygen (DO) in water at
D. Batch reactor is under a continuous flow state (i.e. flow continuously flows in and leaves from the reactor).
3. For our current classroom, if the volumetric size of this classroom is X and the air volumetric flow rate is Y, X/Y = _______.
A. Length of a side of this room; B. retention time; C. volume of this classroom; D. the velocity of the following air
4. The top three US water withdrawals by category are ____
A. thermoelectric power, irrigation, and public supply;
B. thermoelectric power, irrigation, and domestic use ;
C. thermoelectric power, irrigation, and industrial use ;
D. thermoelectric power, domestic use, and irrigation;
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