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A frictionless piston -cylinder device contains saturated liquid water at 200 kpa pressure. Now 450 kJ of heat is transfer to water from a source at 500oC, and apart of the liquid vaporizes at constant pressure. Determine the total entropy change for this process, in kJ/K .is this process reversible, irreversible, or impossible?
you are an engineer in an electric-generation station. you know that flames in the boiler reach a temp of 1200 k and
question helpquestion 1 determine the headwater depth of a 1000 mm high by 1500mm wide concrete box culvert operating
a bridge to be fabricated of steel girders is designed to be 500 m long and 12 m wide at ambient temperature assumed 20
the hull of a boat has a volume of 150 m3 and the total mass of the boat when empty is 8560 kg. determine how much load
toughness is proportional to the amount of energy storedput in to a material or structure when a stress is applied.
Determine the natural frequencies of the system-For the baseline system and find a design that changes the ?rst two natural frequencies more than any of the previous slight modi?cations.
the pistons of a v6 automobile develops 225hp. if the engine drive shaft rotational speed is 4700 rpm and the torque is
a ball is shot vertically into the air 50 m/s 108m from the ground. 6 seconds later, another ball is shot vertically into the air 20 m/s 58m from the ground. Find the distance where they meet in the air from the ground.
superheated steam at 500 celsius and 3 mpa enters a steady state turbine with a mass flow rate of 500 kgs. the steam
a piston cylinder device contains 1 kg of liquid water at 200kpa and 25oc. heat is added to the water in the cylinder
the uniform 11.1-kg square panel is suspended from point c by the two wires at a and b. if the wire at b suddenly
a helical tension spring is made of 1.2 mm wire having a yield strengths of 1280 mpa tension and 740 mpa torsion. the
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