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A 0.4m3 rigid tank initially contains refrigerant-134a at 14 degree C. At this state, 70% of the mass is in the vapour phase, and the rest in the liquid phase. The tank is connected by a valve to a supply line where refrigerant at 1 MPa and 100 degree C flows steadily. Now the valve is opened slightly, and the refrigerant is allowed to enter the tank. When the pressure in the tank reaches 700 kPa, the entire refrigerant in the tank exists in the vapour phase only. At this point the valve is closed. Determine The final temperature in the tank The mass of refrigerant that has entered the tank The heat transfer between the system and the surroundings.
you are to design an air compressor with an inlet pressure of 100 kpa an inlet temperature of 300 k and anexit pressure
the 18 kg block starts from rest and moves upward when constant forces of 20 n and 40 n are applied to supporting
A satellite is in Earth orbit with an altitude at perigee of 555.0 km and an altitude at apogee of 1200.0 km. a. What is the semi-major axis of the orbit? b. What is the eccentricity? c. If the true anomaly is 160 degrees, what is the satellite's ..
while holding one of its ends a worker lobs a coil of rope over the lowest limb of a tree. if he throws the rope with
Determine the ideal launch vehicle that can put this orbiter into the parking orbit. (hint: you do not have to consider the Sun in this problem. Only SOI of the Earth and the Moon)
What is the composition of the last solid remaining prior to complete melting?
a pelton wheel is used to produce hydroelectric power. the average radius of the wheel is 1.83 m and the jet velocity
Gear A rotates with an angular velocity of 100 rpm clockwise. Knowing that the angular velocity of arm AB is 50 rpm counterclockwise, determine the corresponding angular velocity of gear B.
What information has to be obtained in order to ensure that the method will be a satisfactory one and determine changes in composition of a fluid. Define what is meant by refractive index, and give the relationship between the incident and refracte..
consider a rankine cycle with a single regenerative feed-water heater. the steam enters the turbine at 30 bar 400c and
an automobile radiator may be viewed as a cross-flow heat exchanger with both fluids unmixed. water with a flow rate of
Transverse Shear Stress variation with changes in point load position - Determine Q factor at 3 the points and calculate the Transverse Shear Stress
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