If you are a refrigeration technician, a warm coat and gloves should be in your truck, even in the middle of the summer.

Answer the following statement true (T) or false (F)


True

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This problem concerns a compound that can be modeled, in both the liquid and the vapor phase, by the following equation of state: Z=1+(aT^0.5)/?V+b/?V^2 Where a= -0.09 LK-0.5mol-1 and b = 0.5 L2mol-2. The table below gives the three possible molar volumes resulting from this equation at two different pressures and a temperature of 300K.


In the solid phase this compound has a molar volume of 0.35 L/mol and a fugacity f =2 atm at P = 1 atm and T = 300 K.

A) Derive algebraic expressions for the liquid and vapor fugacities of this compound (f^Land f^V) as a function of temperature, pressure, volume, and/or known constants.
B) Is this compound a solid, liquid or vapor at P=1 atm and T=300 K? Give calculations to demonstrate your answer.
C) Is this compound a solid, liquid or vapor at P=4 atm and T=300 K? Give calculations to demonstrate your answer.

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Donna used the formula C = 0.0034 D2L to find the capacity of her cylindrical tank. The tank has a diameter of 36 inches and a length of 6 feet 7 inches.

Where: C is the capacity, gal. D is the diameter, in. L is the length, in. What is the capacity of Donna’s tank?

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What is indicated when a DMM shows continuity in both directions when testing a diode?

A. diode is good B. diode is shorted C. diode is open D. diode is not energized

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Will a flush-mount electric panel requiring an opening depth of 4 3/4" properly fit within the chase of a 6-inch block wall if the width of the blocks' face shells are 1 1/4"?

What will be an ideal response?

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