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Problem 11.2: A mixture contains n-pentane, n-hexane, and n-heptane at equal mole fractions. The temperature is 55 °C. a) Calculate the bubble and dew pressure at 55 °C. b) What is the phase of the system at 1.7 bar, 55 °C? If a two-phase system, calculate the amount and composition of each phase. c) Repeat the previous part at 0.5 bar. d) The pressure is adjusted so that 75% of the mixture is vapor while the temperature remains at 55 °C. Determine the pressure and the compositions of the two phases. Additional data: At 55 °C the vapor pressures of n-C5 , n-C6 , and n-C7 are 1.903 bar, 0.644 bar, and 0.231 bar respectively.
A geometrically similar 200 pump having a similar efficiency curve is used to pump water through 112.5 m of 150 mm pipe, f = 0.025. The static lift is 10 m. Neglecting minor losses in the pipe calculate the flow, head and power required to drive t..
Determine the angular velocity and angular acceleration of the blade at this instant
What's an appropriate rule of thumb for dealing with "magic numbers" (empirical parameters) in the development of an image analysis algorithm?
A 10-turn square coil of side 200 mm is mounted on a cylinder 200 mm in diameter. If the cylinder rotates at 1800 r/min in a uniform 1.2-T field, determine the maximum value of the voltage induced in the coil.
The hydrogen produced was successfully vented and no chemical explosion occurred. If 1.00 103 kg of Zr reacts, what mass of H2 is produced? What volume of H2 at 1.0 atm and 1000.°C is produced?
If the capital costs in the adipic acid example described in Example 9.5 are known to within -10% to +30%, and the cash flow from operations is predicted within ±10%, estimate the mean and standard deviation of the 10-year NPV. Is there a greater ..
Styrene is made by dehydrogenation of ethyl benzene, which is formed by alkylation of benzene with ethylene. Propose target yields for the alkylation and dehydrogenation steps if the forecasted prices per metric ton are styrene $800, ethylene $800..
A3m3 tank is divided into two parts via a thermally insulated wall. One part has a volume of 2 m3 and contains a vapor-liquid mixture of steam, 7% liquid, at 5 bar. The other part contains steam at 10 bar, 500 °C. A valve is opened and allows th..
Outline the provisions of Occupational Safety and Health Act 2005 with regard to Substances hazardous to health Describe four types of hazard which arise from the use of chemicals
determine the analog output voltage as a fraction of the reference voltage.
If one of the machines has its field excitation adjusted such that it delivers 125 A lagging current, determine the armature current, power factor, excitation voltage, and power angle of each machine.
how the interconnections and appropriate polarity markings.
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