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A refrigerator removes heat from the refrigerated space at 2 oC at a rate of 300 kJ/min and rejects heat to the kitchen air at 26 oC at a rate of 375 kJ/min. Determine if this refrigerator violates the second law of thermodynamics on the basis of a) the Clausius inequality and b) the Carnot principle.
a nozzle discharges a stream of water of cross-sectional area a with a velocity va. the stream is deected by a single
water is contained in a closed rigid tank of volume 0.3 m3 at an initial pressure of 4 bar and a quality of 66. heat
getting heat from a hot source that is 100 kpa steam going from saturated vapor to a saturated liquid 1mw of power is
For the process where q= 62.5 kj/kg and wkcs= 60 kj/kg determine the energy change if the system mass is 2 kg.
a single-effect evaporator system with thermal recompression is being used to concentrate skim milk from an initial
A bullet is fired horizontally into a wood block resting on a horizontal, frictionless surface. If the mass of the bullet is 0.02 Kg and the velocity is 600 m/s
one car p heading north begins at rest and accelerates with acceleration a. the other car q begins with a velocity of
a thermometer is initially at a temperature of 70degf and is suddenly placed in a liquid which is maintained at
a spring-loaded pistoncylinder assembly contains water at 500 c and 3 mpa. the setup is such that pressure is
a single cycle of a ramp function of voltage versus time has the form vt 100t from -0.01 to 0.01 s. using direct
find the derivative of the following function.y5cos10xx3-2x2-6x10using backward difference and central difference
Air enters a 0.6 m diameter fan at 16 deg C, 101 kPa, and is discharged at 18 deg C, 105 kPa, with a volumetric flow rate of 0.35 m^3/s.
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