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1. Carbon dioxide initially at 50 kPa, 400 K, undergoes a process in a closed system until its pressure and temperatures are 2 MPa and 800 K, respectively. Assuming ideal gas behavior, find the entropy change of the carbon dioxide (Cp = 1.054 kJ/kg.K)
2. Air initially at 0.1 MPa, 27 °C, is compressed reversibly to a final state. Find the entropy change of the air when the final state is 0.5MPa, 227 °C.
3. Air initially at 0.1 MPa, 27 °C, is compressed reversibly to a final state. Find the temperature at 0.5 MPa that makes the entropy change zero.
A 8-cm diameter horizontal jet of water strikes a flat plate at a velocity of 30 m/s. Calculate the force exerted by the water stream on the plate.
10 mols of liquid benzene at 20degc and 1 bar is pumped to 5 bar. at the inlet conditions the molar volume of benzene
A Steam-powered catapult on an aircraft carrier accelerates a 16000-kg aircraft from zero to 320 km/h in 2 seconds. Assume that the acceleration is constant. A) Determine the work done by the catapult on the aircraft. B) Determine the kinetic energy ..
a geothermal power plant utilizes steam produced by natural means underground. steam wells arc drilled to tap this
the corresponding rankine cycle for an actural power plantusing water runs at a high pressure of 6.3mpa a low pressure
Determine the force in each of the members connecting joints A through F of the vaulted roof truss shown. State whether each member is in tension or compression.
refrigerant 134a enters the expansion valve of a refrigeration systems at a pressure of 1.0mpa and a temperature of 34
determine a) the angular accelerations of gears B and C, b) the accelerations of the points on gears B and C which are in contact when t = 0.5 s.
the acceleration of a particle is given by a -ks2 where a is in meters per second squared k is a constant and s is in
Couette Flow Velocity Distribution, Using the log law, determine the velocity distribution for Couette flow between parallel plates a distance h apart, with U = the velocity of the top plate.
air in the atmosphere is composed of primarily nitrogen oxygen and argon. the mole percents of the compounds are as
Starting from rest the motorboat travels around the circular path,P = 50m , at a speed v=(0.8t)m/s, where t is in seconds. Determine the magnitude of the boat's velocity when it has traveled 40m. Determine the magnitude of the boat's acceleration ..
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