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A mass of 0.2 kg of saturated refrigerant-134a is contained in a piston-cylinder device at 200 kPa. Initially, 75% of the mass is in the liquid phase. Heat is now transferred to the refrigerant at constant pressure until the cylinder contains vapor only. Determine:
(A) The volume occupied by the refrigerant initially
(B) The work done
(C) The total heat transfer
a full revolution press has 100 rpm flywheel rotation.it has two handed trip devices mounted 20 inches from point of operation how many engagement points on the flywheel would be nessary to make this machine safe?
Compute the theoretical density of CaF2, which has the fluorite structure. Ionic radii of Ca2+ and F- are 0.100 nm and 0.133 nm respectively.
During the process, heat is transferred from the air such that the temperature inside the cylinder remains constant. calculate the work input during this process. R(air)=287j/KgK
a weight attached to a spring of stiffness 525 nm has a viscous damping device. when the weight is displaced and
introductiona trebuchet is weapon developed and used europe in the 12th century. it can also be known as a counter
What is the work you get out of each kJ of heat extracted from the basin? Repeat for the case that the water is at 100C. Comment on why efficient car engines run so hot.
some of our modern kitcgen cookware is made of ceramic materials. a compare the relative properties and cost of three
a. Find the temperature at the interface between the rod and sleeve and on the outer surface. b. What is the temperature at the center of the rod?
Determine a) the volume of the tank,b)the final temperature and pressure, and c) the internal energychange of the water.
temperature in state college pa on 31st december 2012 was 22 f. if the barometric pressure was 100 kpa and the humidity
If the final pressure is 1.0 MPa, determine (a) the temperature (°C) at the final state and (b) the heat transfer (kJ) during this process.
an airbus 310a with a mass of 140000 kg sits on a runway. it takes off and flies to an altitude of 10500 m with a speed
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