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A gas mixture at 675.0°C and 113 kPa absolute enters a heat exchanger at a rate of 69.0 m3/hr. The gas leaves the heat exchanger at 245.0°C. The change in enthalpy of the gas during the cooling process is -6.80 kJ/mol. What is the heat required in kW? Assume the gas behaves ideally and that the changes in kinetic and potential energy are negligible.
a househusband is steaming beef for his family in a pan with a surface area of 23.544 cm2 that is covered with i a 50 g
A volume of 1.8 L of neon gas (monatomic) is at a pressure of 3.4 atmospheres and a temperature of 370 K. The atomic mass of neon is 20.2 g / mol. Calculate the mass of neon gas in SI units.
why is it necessary for courts to recognize anticipatory repudiation in connection with contracts invloving a structure
the reynolds number of a fluid flowing through a 5-cm-diameter, square-edged orifice plate meter within a 15-cm pipe is 250,000. Find the discharge coefficient for flange taps.
A magnetic pickup is used to detect the shaft speed of a turbocharger. A standard hexagonal nut is used to excite the pickup. If the shaft is turning at 50,000 rpm, how many positive impulses will be counted per second?
a compressor installed at a whalf for loading container ships is able to provide 6 bar.g pressure into the pressure
water gate is hinged at point o. angle between the gate and the ground is given alpha 60 degrees. the gate opens when
nitrogen gas at 60 kpa and 7degc enters an adiabatic diffuser steadily with a velocity of 275 mls and leaves at 85 kpa
consider a plane wall experiencing transient 1-d heat conduction in x-direction. draw the temperature profile t as a
If a power plant rejects heat of 30,000,000kW/day into a nearby lake with 16,000 acre feet of water, how fast in degrees/day will the temperature of the lake rise if it is assumed that the lake is insulated and cannot reject heat in any other way?
State mathematically Newtona's law of viscosity. Water moves over a flat surface. At a point on the surface the velocity gradient is 60 s-1. The viscosity of water is 0.0012 Ns/m2. Calculate the wall shear stress.
the lifetime of a lightbulb is normally distrbuted with a mean of 1000 hrs and a standard deviation of 30 hours. find the probability that a randomly selected light bulb last longer than 1045 hours.
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