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Problem 6.32:
Methyl chloride at 2 bar and 65 °C is to be liquefied under constant pressure to produce saturated liquid. a) Calculate the ideal work for this process assuming the surroundings to be at 25 °C. b) The liquefaction will be carried out using a refrigeration cycle with a coefficient of performance ω = 3.5. Calculate the work needed to operate this cycle. c) What is the lost work for the cycle in part (b)? The following information for methyl chloride is available: Saturation temperature at 2 bar: - 7 °C.ΔHvap at 2 bar: 21.5 kJ/mol.CP of vapor: 38 J/mol K. Assume CH3 Cl vapor may be assumed to be ideal. Is this a good assumption?
Calculate the volume of blood in the rat. What assumptions must be made in performing this calculation?
The area of each plate in a differential capacitor sensor is equal to 4 cm2. Calculate the equilibrium capacitance in air for each capacitor assuming that the equilibrium displacement for each capacitor is equal to 2 mm.
Plot all curves on the same plot. Discuss the implications of your results for transplantation.
a solution containing 30 wt. benzene b 45 wt. toluene t and 25 wt. xylene x is fed into a distillation process as
If the machine is run as a motor while absorbing 10 kW from 230- V mains, find the speed of the motor. Neglect the brush-contact drop.
Determine the electromagnetic power developed by the armature under these conditions, in watts and in horsepower.
A plywood-manufacturing concern is using a binder that requires a temeprature of 180°F in order to obtain adequate holding strength.
Explain the operation of the counter and sketch the timing diagram.
A jacketed vessel is to be used as a reactor. the vessel has an internal diameter of 2m & it fitted with a jacket over a straight section 1.5m long. both the vessel & jacket walls are 25mm thick.
In the reaction 2C8H18 + 25O2 --> 16CO2 + 18 H2O, the ratio of volumes of O2 to CO2 is ?
If the motor is operating on load with a power angle of -20°, and the excitation is adjusted so that the excitation voltage is equal in magnitude to the terminal voltage, determine the armature current and the power factor of the motor.
A 230-V, single-phase, 60-Hz source supplies two loads in parallel. One draws 10 kVA at a lagging power factor of 0.80 and the other draws 6 kW at a lagging power factor of 0.90. Compute the source current.
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