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An isolated system consists of a closed copper vessel of mass 0.1 kg, containing 1 kg of liquid water, each initially at 5°C, immersed in 20 kg of liquid water, initially at 20°C. The system is allowed to come to equilibrium. Determine the final temperature in °C, the entropy change for the copper vessel and each of the liquid water masses, and the amount of entropy produced.
a piston-cylinder assembly is fitted with stops. the assembly contains 0.1 kg of water initially at 1 mpa and 500degc.
a heat engine is operating on a carnot cycle and has a thermal efficiency of 75 percent. the waste heat from this
a woman with wieght 637n lies on a bed of nails. the bed has a weight of 735n and a lenght of 1.72m. the bed is held up
the pilot of an airplane carrying a package of mail to a remote outpost wishes to release the package at the right
the molar volume cm3mol of a binary liquid mixture at t and p is given by v 120x170x215x18x2x1x2a find expressions for
a small barge with a draft d 0.5 m and a wetted beam of b 2m and a length l 10 m into the page needs bracing in the
Determine the normal force R between the wheel and the horizontal surface. Neglect the weight of the horizontal shaft.
engine B is supercharged with after cooling and has cylinder inlet condition of 80c and 130 k pa to avoid knock problem it is desirable to have the air-fuel temperature at the start of combustion in engine B to be the same as in engine A calculate..
two machines are used for filling glass bottles with a soft-drink beverage. the filling process have known standard
a magnesium-lead alloy of mass 5.5 kg consists of a solid phase that has a composition that is just slightly below the
an ideal reheat rankine cycle with water as the working fluid operates the inlet of the high-pressure turbine at 8000
Calculate the steady state excess electron and hole concentrations as a function of distance into the semiconductor.
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