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The first step in the manufacture of the isobutene from the isomerization of n-butane is to compress the feed stream of n-butane. It enters the compressor at 9.47 bar and 80oC and leaves at 18.9 bar and 120oC to be fed into the isomerization reactor. The work supplied to the compressor is 2100J/mol. Calculate using volume and temperature as your independent variables the heat that must be supplied into the unit per mole of n-butane that passes through the compressor, if the fluid obeys the van der Waals equation of state. For n-butane Tc= 425.1K, Pc=37.96bar, Vc=255cm3/mol.
a knoop microhardness measurement was made on a sample that resulted in a khn of 481when a load of 5120 kg was applied.
A balloon behaves so the pressure is P = C2V1/3, C2 = 100 kPa/m. The balloon is blown up with air from a starting volume of 1 m3 to a volume of 3 m3. Find the final mass of air assuming it is at 25oC and the work done by the air.
one liter of saturated liquid water is contained in a piston-cylinder assembly. initiallythe water pressure is 2bar.
determine the temperatures of surface 1 through 4 of the furnace cavity of example 13.3 if the entire furnace
consider a non-ideal vapor-compression cycle where refrigerant 134a flows at a rate of 0.05 kgs. the refrigerant enters
a ceramic bidet failed catastrophically in normal use causing serious lacerations to the person concerned. the facture
Water at 150C flows in 1½-inch Sch 40 steel pipe with a flow velocity of 2.86 m/s. The pipe expands to 4-inch Sch 40.
the rod ab slides through the pivoted collar as end a moves along the slot. if a starts from rest at x0 and moves to
determine the resultant internal normal force acting on the cross section through point of the signpost. the post is
If the atmospheric pressure is 90 kPa, determine the pressure inside the cylinder.
An Industrial water shutoff valve is designed to operate with 40lbs of force and will encounter 150lbs of resistance force applied to a 2in diameter axle. What is the required actual mechanical advantage of the system?
the jeep has a weight of 2510lb and an engine which transmits a power of 100 hp to all the wheels. assuming the wheels
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