The ______________ creates much less pressure drop through the valve than the _____________ and is a much better application where excess pressure drop is a concern.
Fill in the blank(s) with the appropriate word(s).
gate valve, globe valve
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In the following, take 
and 
for nitrogen gas:
(a) Three moles of nitrogen at 30°C, contained in a rigid vessel, is heated to 250°C. How much heat is required if the vessel has a negligible heat capacity? If the vessel weighs 100 kg and has a heat capacity of 
how
much heat is required?
(b) Four moles of nitrogen at 200°C is contained in a piston/cylinder arrangement. How much heat must be extracted from this system, which is kept at constant pressure, to cool it to 40°C if the heat capacity of the piston and cylinder is neglected?
The fatal split in the Whig party in 1852 occurred over
A. the Clayton-Bulwer Treaty. B. slavery. C. the Gadsden Purchase. D. homestead laws. E. the transcontinental railroad route.
What was the name of the oil rig involved in a major oil spill off the coast of Louisiana in 2010?
What will be an ideal response?
In a typical oil burner, the oil is ignited by _____
a. a hot surface igniter b. a pilot light c. electrodes d. a spark plug