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Refrigerant R-134a with a mass of 0.08 kg is expanded adiabatically from a superheated vapor at 10 bar, 40 C to a saturated liquid-vapor mixture at 1 bar producing 3 kJ of work output. Determine the final temperature and the change in volume for the process. Sketch the process on a p-v diagram. Neglect changes in kineticand potential energy.
learning goal to determine cartesian force components from magnitude and determine position and resultant vectors by
a gas-turbine power plant operates on a simple brayton cycle with air as the working fluid. the air enters the turbine
If after 49.5 h the concentration of carbon is 0.35 wt% at a position 4.0 mm below the surface, determine the temperature at which the treatment was carried out.
Air in piston/cylinder at 200 kPa, 600K is expanded in a constant-pressure process to twice the initial volume (state 2). At this point, the piston is locked with a pin and heat is transferred to a final temperature of 600K. Find the work and heat..
Estimating fractions of a cost, Estimate what fraction of the price of a pocket calculator is required to cover the cost of developing the product.
small objects are delivered to the 72-in. inclined chute by a conveyor belt a which moves at a speed v1 1.2 ftsec. if
the two 1.5-kg spheres are released from rest and gently nudged outward from the position theta0 and then rotate in a
A hemispherical dome is filled with water. The dome arrangement weighs 28kN and is fastened to the floor by bolts equally spaced
rigid beam abc is supported as shown in figure p4.10. the pin connections at b c and d are each double shear
when a force is transferred to another point of the body indicate which of the following quantities remain unchanged
1.what is a beam? what factors determine the maximum load that it can take without failure?2.what is a column? what
A heat pump uses refrigerant-134a as the working fluid in an ideal vapour-compression refrigeration cycle between 0.14 and 0.8 MPa. The refrigerant leaves the compressor at a temperature of 40° C. Determine the pressure, temperature and enthalpy a..
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