Which color of orifice tube will allow the most refrigerant to pass through it?

A. Red
B. Orange
C. Green
D. Brown


Answer: A

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Assuming the ideal gas model and the shortcut van ’t Hoff equation are valid, how many moles of 1,3-butadiene are in the system at equilibrium?

1,3-butadiene can be formed through the dehydrogenation of n-butane: C_4 H_10 ? C_4 H_6+ 2H_2 If 10 mol of n-butane and 10 mol of 1,3-butadiene are placed in a closed system reactor, the system is allowed to come to equilibrium at T = 1000 K and P = 0.3 MPa. A. 10 mol B. 12.2 mol C. 15.6 mol D. 20 mol E. The problem cannot be solved.

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Name four hardwoods of commercial importance in the Central Broad-leaved Forest region

What will be an ideal response?

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Stored cuttings should be allowed to dry out, though it does not hurt them to become extremely wet

Indicate whether the statement is true or false

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To detect a laser beam, a battery powered electronic sensor target, also called a receiver or ____, is attached to the leveling rod or stick.

a.detector b.transistor c.interceptor d.sink

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