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An ideal Brayton cycle uses air as a working fluid. The air enters the compressor at 101 kpa and 37 C. The pressure ratio of the compressor is 12:1, and the temperature of the air as it leaves the turbine is 497 C. The temperature and the pressure of the surroundings are 37 C and 100 kpa, respectively. Use the air-standard assumptions and determine the following quantities: (a) The work per unit mass required to operate the compressor; (b) The work per unit mass produced by the turbine; (c) The heat transfer per unit mass during the combustion process and during the exhaust process; (d) The irreversibility of the cycle on a unit-mass basis, assuming the temperature of the low- and high-temperature reservoirs ar 37 C and 1300 C, respectively; (e) The thermal efficiency of the cycle.
CELL EMF: The size of a cell has no bearing on the emf that it will produce, the generated emf being determined solely by the materials used in its construction. Another point
why an electron can''t exist in the nucleus .
What are radiation hazards? Mention four safety measures which should be taken against radioactive radiation. OR Explain radio isotopes? Write their any four uses. Descri
Germanium possesses (A) One valence electrons. (B) Two valence electrons. (C) Three valence electrons. (D) Four valence electrons. Ans: Germanium possess
In an attempt to make a 3-point shot from a distance of 6.00 m, a basketball player lofts the ball at an angle of 68° above the horizontal. The ball has an initial velocity of 10.0
what is the principle on which deflection magnetometer work?
Determine the moment of inertia with respect to the x axis for the shaded area shown (Figure 2) . The dimension is a = 2.00m
A block of metal which weighs 60 newtons in air and 40 newtons under water has a density, in kilograms per meter cubed, of: a) 1000 b) 3000 c) 5000 d) 7000
It is the difference among potential at two points of a conductor. Please note that by potential(at a point A) ,we actually mean potential difference among point A and another
Q. A coil of area of cross section 0.5 m 2 among 10 turns is in a plane perpendicular to a magnetic field of 0.2 wb / m 2 . Compute the flux through the coil.
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