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R134a is condensed at a constant temperature of 30°C as it flows through the condenser of a refrigerator by rejecting heat at a rate of 6 kW. Calculate the rate of entropy change of R134a as it flows through the condenser.
the lowest temperature that has been achieved is about 1 times 10-6 k. to achieve this an additional stage of cooling
if f1 110n f2 121n and f3 85n determine the magnitude and coordinate direction angles of the resultant couple
calculate the number of vacancies per cubic meter in some metal at 688degc. the energy for vacancy formation is 0.87
1.determine the specific volume of superheated nitrogen gas at an absolute pressure of 678 kpa and -134degc based on a
the temperature profile at a location in water flowing over a flat surface is -800y experimentally measure to be tdegc
determine the total exergy destruction of a brayton cycle with a source temperature of 1800k and a sink temperature of
assume a wind turbine with a hub 50 meters above the ground a rotor diameter of 50 meters and wind conversion efficiecy
a 0.5-in.-diameter steel e 30000 ksi bolt 1 is placed in a copper tube 2 as shown in fig. p5.47. the copper e 16000
a thin-walled tube is subjected to an axial force of 40 kn. if the tube elongates 3mm and its circumfrence decreases
a specimen of material a in a tension test elongates from an original length of 2.2 to a length l uniformly after which
Determine the expected diffraction angle for the first-order reflection from the (310) set of planes for BCC chromium when monochromatic radiation of wavelength 0.0711 nm is used.
what will be the final temperature in the tank? how much work will be accomplished over the course of the entire process?
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