Follow the steps of the Systematic Approach of Section 14.4—that is, (1) identify the system, (2) determine whether the process is batch or rate, (3) construct a schematic diagram with inputs and outputs, (4) Label known material quantities or rates of flow and so on. The feed to a distillation column contains 37 percent benzene, the remainder toluene. The overhead (product) contains 55 percent benzene and the bottoms (waste) contains 5.0 percent benzene. Calculate the percentage of the total feed that leaves as product.

What will be an ideal response?


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If a transformer has 200 turns in the primary, 100 turns in the secondary, and 150VAC applied to the primary, the voltage across the secondary is _____.

a. 75VAC b. 90VAC c. 120VAC d. 140VAC

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In a simple circuit, 68 mA flows through a 1.2 k? resistor. The applied voltage is

A) 8.16 V B) 17.64 V C) 1.76 V D) 81.6 V

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Describe aligned dimensioning.

What will be an ideal response?

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If X=2, Y=3, and Z=-1, what is (2X+Y) - Z?

Fill in the blank(s) with the appropriate word(s).

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