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1. A 5-kg aluminum radiator holds 2 kg of liquid R-134a at -10?C. The setup is brought indoors and heated with 220 kJ. Find the final temperature and the change in entropy of the mass.
2. A 12-kg steel container has 0.2 kg superheated water vapor at 1000 kPa, both at 200?C. The total mass is now cooled to the ambient temperature, 30?C. How much heat transfer was taken out and what is the steel-water entropy change?
Air at 70 degrees Celsius and atmospheric pressure flows with a velocity of 22 fps through a 3-in diameter pipe (e=0.00015 in). Find the friction head loss in 75 ft of pipe.
Assume that the design temperature and residence time have been established as 1300 degrees F and 0.6 seconds, respectively. The type of burner used in the process requires outside air at a mass ratio of 12:1 (air to fuel gas).
A particle travels along a path defined by the parabola y=0.5x^2. If the component of velocity along the axis is Vx=6t with t in seconds. determine the particle's distance from the oriigin
A soil specimen has a water content of 18% and a wet unit weight of 118.5 lb/cu. ft. The specific gravity of solids is found to be 2.72. Find the:
Using EES (or other) software and the relations given in Table A-32, calculate the one dimensional isentropic compressible-flow functions by varying the upstream Mach number from 1 to 10 in increments of 0.5 for air with k= 1.4.
true bearing of line is 300 and the magnetic declination is 30 w its magnetic bearing is what ? and next q. if the back
A gas is containied in a vertical frictionless piston cylinder device. the piston has a mass of 20kg with a cross-sectional area of 20cm^2 and is pulled with a force of 100n. if the atmospheric pressure is 100kpa determine the pressure inside.
The viscosity of a fluid can be measured in an experiment by dropping a small ball into a calibrated tube containing the fluid and observing the random variable X, the time it takes for the ball to drop the measured distance. Assume that X is normall..
A suspended solids analysis is run on a sample. The tare mass of the crucible and filter is 55.3520 g. A sample of 260 mL is then filtered and the residue dried to constant mass at 103 degrees C
Offshore oil exploration platform is expected to encounter current of 3 m/s wave height 4 m and periods 15 seconds. A 1 in 20 scale modes is to be build and tested in hydraulic laboratory to determine the forces on the full scale structure.
A beam of w16 X 50 section has a simple span of 20 ft. The beam is subjected to a uniform load of 2 kips/ft and an axial tensile force of 10 kips. Determine the maximum tensile and compressive stresses in the beam
The composition of moist air is given on a molar basis to be 78 percent N2, 20 percent O2, and 2 percent water vapor. Determine the mass fractions of the constituents of air.
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