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There are two thermal reservoirs: the hot reservoir is at 1200 K and the cold reservoir is at 600 K. If you wanted to transfer 100 kJ from on reservoir to the other, what would the change in entropy of the two reservoirs be?
A supply of steam at a pressure of 4 MPa and a temperature of 332°C (state 1) is used to do mechanical work as it expands to a pressure of 100 kPa and a quality of 90% (state 2). During the expansion process, 60 kJ/kg of heat is removed from the wate..
a heat pump utilizes a well-insulated compressor to compress r-134 from a saturated vapor at 160 kpa at a rate of 0.85
for the fluid power system shown in figure determine the external load f that the hydraulic cylinder can sustain while
a chiller is providing 5 tons of cooling to an air handler by cooling water transfer between the two devices. the
a piston-cylinder arrangement initially contains water at p 300 psia and t 500of. the piston is moved to a final
consider an ideal steam reheat cycle in which the steam enters the high pressure turbine at 600 psi and 700f and then
determine the terminal velocity of a 75-mm diameter sphere made of solid aluminum specific weight26.6knm3 in free fall
the earth spins about its own axis at an angular velocity omega. imagine an experiment where an object of mass m kg is
a cylindrical pressure vessel of diameter 2 m and wall thickness 20 mm is subjected to an internal pressure of 20 bar 2
Solar energy impinging on the outer layer of earth’s atmosphere (usually called “solar constant”) has been measured as 1367W/m^2. What is the solar constant on Mars
a surface is maintained at 150oc and is enclosed by a very large surrounding surface at 80oc. what is the net radiant
two forces each of magnitude p are applied to the wrench. the diameter of the steel shaft ab is 15mm. determine the
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