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One kilogram of air as an ideal gas executes a Carnot power cycle having a thermal efficiency of 60%. The heat transfer to the air during the isothermal expansion is 40 kJ. At the beginning of the isothermal expansion, the pressure is 700 kPa and the volume is 0.24 m3. Determine
a) the maximum and minimum temperatures for the cycle, in K.
b) the heat and work for each process, in kJ.
a water tank consists of a cylindrical part of radius r and height h and a hemispherical top. the tank is to be
a mass of 0.25 kg of co2 at a temperature of 300 k and pressure of 100 kpa is heated at constant pressure to a volume
a pressure vessel made of aluminum alloy 2024-t351 sy 325 mpa and kc 36 mpa-m12 is manufactured for a safety factor
Determine the least area of a cross section of an ASTM-a36 steel bar required to support a tensile load of 100,000 lbs. the allowable unit stress is 36,000 psi. (Ans. nearest 100th of an inch squared)
Explain any anomalies - differences from theory or what you thought should happen. Is a linear approximation sufficient to describe and predict the relationship between load and output voltage?
a piston and cylinder machine containing a fluid system has a stirring device in the cylinder the piston is
determine the thermal efficiency and the required steam flow rate kgs for a reheat-regenerative steam power plant which
due to a poorly designed foundation the statue at point a slowly slides down a grass covered slope. to prevent further
a pulley of moment of inertia i is fixed on a shaft of polar second moment of area j and shear modulus g. the shaft is
a projectile is fired at an angle of 62deg from the horizontal with a velocity of 704 ftsec. if it lands 4.75 seconds
A person with glasses enters a heated room at 22oC, after spending some time in the cold (the glasses are at 1oC). The glasses start to fog. Find the minimum value of the relative humidity in the room.
gold and silicon are mutually insoluble in the solid state and form a eutectic system with at eutectic temperature of
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