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An operating test of a steam turbine produces the following results. With steam supplied to the turbine at 1350 Wa and 648.15 K (375"C), the exhaust from the turbine at 10 kPa is saturated vapor. Assuming adiabatic operation and negligible changes in kinetic and potential energies, determine the turbine efficiency, i.e., the ratio of actual work of the turbine to the work of a turbine operating isentropically from the same initial conditions to the same exhaust pressure.
Question - 1 In an oxygen -nitrogen mixture at 10 atmosphere and 25 oc , the concentration of oxygen at two places 0.2 cm apart are 10 and 20 volume percent respectively. The rate of diffusion of oxygen expressed as g /cm2 -hr for the case of unic..
The gas upstream from the point of ammonia injection contains no measurable ammonia. How many kilograms of natural gas are flowing through the pipelines per hour?
When the transformer is delivering rated kVA to a load at rated secondary voltage and a 0.85 lagging power factor, find the percent voltage regulation and the efficiency of the transformer.
Fit the data to an empirical heat-capacity equation of the form by simple regression techniques.
The molar specific heat of many materials at low temperatures is found to obey the Debye law C_v = A[T/theta]^3 where A is a constant equal to 1.94 x 10^3 Jmol^-1K^-1 and with the Debye temperature theta taking different values for different mater..
Calculate the maximum allowable particle size as a function of the bulk glucose concentrations of 5 g/ l and 50 g /l. For medium containing 30 g /l glucose, calculate Rmax at cell loading of 5 and 30 wt%.
Since the temperature in the summer can get as high as 95°F, determine the pressure that the tank must withstand to avoid rupture.
An alternative process for converting benzene to cyclohexane also uses a supported noble metal catalyst, but carries out the reaction in the liquid phase, at a temperature of 160 °C and pressure of 100 bare, in a slurry reactor.
The opposite surface of a slab A and B are maintained at 100 degree and 70 degree respectively ,if the steel plate measures 10cm thick estimate the heat transfer rate across the slab and the temperature recorded by a ther mocouple embedded 3cm fro..
The machine is now run as a motor while taking 10 kW at 250 V. Neglect the brush contact drop. Determine the speed of the motor.
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?
Show the implementation of the same synchronous counter using D flip-flops.
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