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What is the work done and the net entropy change for the process that is a rigid container with a volume of 200 L and is divided into two equal volumes by a partition with both sides containing nitr
Determine the entropy generated for carbon dioxide in a piston/cylinder with an initial volume of 200 L at 300 C, 1MPa.
What is the entropy change for, R-22 in a piston/cylinder starting with saturated vapor at 10 C and a volume of 10 L which is then compressed to 2 MPa.
A 2 kg copper ingot initially at 383oC is dropped into a 2 kg, 25oC, atmospheric pressure water tank. What is the final temperature of the water and copper ingot.
Determine the final temperature in °C, the entropy change for the copper vessel and each of the liquid water masses, and the amount of entropy produced.
The temperature at the conclusion of the adiabatic expansion is 20°C. Sketch the cycle on T-s and P-v diagrams. Determine the heat added and net work in KJ, and the thermal efficiency.
Water, initially a saturated liquid at 100°C, is contained in a piston-cylinder. Determine the work and heat transfer in KJ/kg, and plot the process on T-s and P-v diagrams.
Assuming the wheels do not slip on the ground, determine the angle (theta) of the largest incline the jeep can climb at a constant speed v = 30ft/s.
Determine: (a) the exergy of the steam at the inlet and exit conditions; (b) the actual power output; (c) the maximum possible power output; (d) the exergy destroyed.
Determine: (a) the exergy of the steam at the initial and final states; (b) the exergy change of the steam; (c) the exergy destroyed.
If the sides of the plate are one foot long and the top of the plate is two feet below the surface of the water then find the fluid force on the plate. Water weighs 62.4 lbs per cubic foot.
If the crate has a weight of 450 lbs, what is the smallest force P, required to move the crate down the incline if the coefficient of friction is 0.4.
Determine the actual work produced during the expansion process, in kJ. (b) Find the entropy production of the expansion process, in kJ/K.
A raindrop has a radius of 3 millimeters.If the raindrop takes 6 seconds to evaporate, determine the volume of the raindrop as function of time,assuming that the raindrop is spherical.
What is the temperature of the other thermal reservoir? At which temperature does the isothermal compression occur: hot or cold
Check the pressure within the tank if filled with 1000 kg of water vapor maintained at 360°C using the (a) ideal gas equation of state. (b) van der Waals equation.
Determine the normal force exerted on each pair of front wheels B and rear driving wheels A. Also, find the traction force on the pair of wheels at A.
What is the exit temperature of the air? How much work is produced during this process? What is the change in the air's specific entropy? How much heat is transferred during this process?
Assuming the compressor has an isentropic efficiency of 80 % and there is no pressure drop through the condenser and evaporator, determine (a) the rate of heat loss to the ambient from the compresso
Calculate (a) the work output of the turbine (kJ/kg), (b) the feed pump work (kJ/kg), (c) the heat rejected in the condenser (kJ/kg).
Calculate the torques applied to the input and output shafts. how would i even approach this question? it doesn't give me radius or anything, just the input and output rpm's.
Determine the minimum power requirement in kW. Determine the power requirement if the pump has an isentropic efficiency of 85%.
A cylindrical rod 0.505 in. in diameter initially is loaded to 2.4 x 104 lbs. diameter is noted to be 0.35 in. At this load the Calculate (a) the engineering stress and strain; (b) the true stress a
A semicircular disk has a mass m and radius r, and it rolls without slipping in the semicircular trough (trough has a radius of 2r).
calculate the power (in Btu/hr) provided by the turbine. c) From the definition of enthalpy, calculate the specific internal energy (u), of the entering and leaving steam. Check your answers using s