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Heating up water for your morning shower provides an excellent example of heat exchange (and mixing that you control). Consider the cold water (Cp = 4.18kJ/kg°C) leading to your shower enters a counter--flow heat exchanger at a rate of 0.5kg/s and 10°C. The water is heated to a more comfortable 42°C by hot water (Cp = 4.20 kJ/kg°C) that enters at 95°C at 2.5 kg/s. Determine the rate of heat transfer and the exit temperature of the hot water.
a rigid tank whose volume is 10l is initially evacuated. a pinhole develops in the wall and air from the surroundings
titanium w6.94x10-19j and silicon w7.77x10-19j surfaces are irradiated with uv radiation with a wavelength of 227nm.
use the generalized virial equation to speculate whether a small leak in an h2 line at 300 bar and 298 k might raise
air at 10 deg c and 80 kpa enters the diffuser of a jet engine steadily with a velocity of 200 ms. the inlet area of
a carefully controlled tensile test is conducted on a metal alloy specimen. the original diameter is 10 mm and the gage
an adiabatic capillary tube is used in some refrigeration systems to drop the pressure of the refrigerant from the
this isnt a specific problem but a question in general. when is it appropriate to use double integrals in solving for
the pressure of 200 kgs of water is to be increased from 1 atm to 4 mpa. the water enters through a 20-cm-diameter pipe
a projectile is fired at an angle of 62deg from the horizontal with a velocity of 704 ftsec. if it lands 4.75 seconds
an agitation system is to be designed for a fluid having a density of 950kgm3 and viscosity of 0.005pas. the vessel
consider a reheat cycle with steam leaving the boiler and entering the turbine at 4 mpa and 400 c . after expanded in
Knowing that the coefficient of restitution is 0.8 between B and C, and 0.5 between A and B, Determine the velocity of each car after all collisions have taken place.
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