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The rigid tank illustrated in the figure has a volume of 0.06 m3 and initially contains a two-phase liquid-vapor mixture of H2O at a pressure of 15 bar and a quality of 0.2. The tank contents are heated. Heating continues until the final quality is x = 0.5. During heating, a pressure-regulating valve keeps the pressure constant in the tank by allowing saturated vapor to escape. Neglecting the kinetic and potential energy effects. (a). Determine the total mass in the tank at the initial and final states, in kg. (b). Calculate the amount of heat transfer, in kJ, from the initial state to the final state.
steam with a mass flow rate of 20 kgs enters an adiabatic turbine at a pressure of 10.0 mpa and a temperature of
A volume of 1.8 L of neon gas (monatomic) is at a pressure of 3.4 atmospheres and a temperature of 370 K. The atomic mass of neon is 20.2 g / mol. Calculate the mass of neon gas in SI units.
a truck travelling along a straight road at speed 20 km/hr increases its speed to 120 hr/hr in time 15 sec.If its acceleration is constant, determine the distance traveled.
Find the volume rate of ?ow in AB, the velocity in BC, the velocity in CD and the diameter of CE.
a cylindrical drill with radius r1 is used to bore vertically a hole through the centre of a sphere of radius r2.a find
a piston-cylinder with a volume of 0.5 m3 holds 1 kg of nitrogen at a temperature of 261 k. heat transfer to the
temperature in state college pa on 31st december 2012 was 22 f. if the barometric pressure was 100 kpa and the humidity
Calculate the number of vacancies per cubic meter in gold at 900°C. The energy for vacancy formation is 0.98 eV/atom. Furthermore, the density and atomic weight for Au are 18.63 g/cm3 (at 900°C) and 196.9 g/mol, respectively.
air flow enters a constant-area insulated duct with a mach number 0.2. the duct diameter is 10 mm and the friction
the atmosphere on maris is comprised of mostly carbon dioxide at a pressure of 600 pa that is not a mistake it is in
How do you determine the velocity of molten metal flowing through the base of the downsprue?
Determine the smallest gauge of copper wire which must be used if the indicated maximum temperature is to be less than 202°C - Explain what is meant by 'the law of intermediate metals' relating to temperature measurement using thermocouples.
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