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A well-insulated rigid tank contains 20 kg of saturated liquid-vapor mixture of water at a 100 kPa. Initially, 73.72% of the mass is in the liquid phase. An electric heater inside is turned on and kept on until all the liquid vaporized. Determine:
a) The entropy change of the water during this processb) The work done by the electric heater during this process H2O 2 kg
a smoke stream from a smoke generating tube is often used as a simple method of flow visualization in wind tunnels.
liquid propane c3h8 enters a combustion chamber at 25 c at a rate of 1.2 kgmin where it is mixed and burned with 150
a closed system containing 2-kg of air undergoes an isothermal process from 600 kpa and 200c to 80 kpa. determine the
steam at a pressure of 0.08 bar and a quality of 93.2 enters a shell-and-tube heat exchanger where it condenses on the
One kilogram of air as an ideal gas executes a Carnot power cycle having a thermal efficiency 50%. The heat transfer to the air during isothermal expansion is 50 kJ. At the end of the isothermal expansion, the pressure is 574 kPa and the volume is..
estimate the theoretical fracture strength of a brittle material if it is known that fracture occurs by the propagation
air at the rate of 18 kgs is drawn into the compressor of a jet engine at 55 kpa and -23oc and is compressed reversibly
given the following data find the straight-line equation using the least square method.find the standard error.x 1 2 3
Determine the missing property among P,T
predict the boiling heat-transfer coefficient for water under pressure boiling at 250 degrees f for a horizontal
air at a pressure of 200 kpa and free stream temperature of 27 degc flows over a square plate at a velocity of 30 ms.
the shaft consists of two sections with 8.5 knm of torque applied clockwise at the joint. the left steel section has a
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