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A system consisting of 3 lb of water vapor in a piston- cylinder assembly, initially at 350°F and a volume of 71.7 ft3, is expanded in a constant-pressure process to a volume of 85.38 ft3. The system then is compressed isothermally to a final volume of 28.2 ft3. During the isothermal compression, energy transfer by work into the system is 72 Btu. Kinetic and potential energy effects are negligible. Determine the heat transfer, in Btu, for each process.
A 5v belt drive system operates an input speed of 1250 RPM at the small sheave. The driving sheave has a pitch diameter of 6.000 in, and the driven sheave has a pitch diameter of 19.000 in. If an optimum center distance of 47 in is specified.
The block is a cube that is 300mm on each side. Assume the block is incredibly tall. At steady state, what is the velocity of the block?
2000 kgh of milk is sterilized in a steam infusion sterilizer steam and milk directly contact. the milk is heated to
if a rectangular box with water accelerates to the right that has the dimensions ofleft side height 40cmlength
consider a hot-air balloon which is comprised of a basket miscellaneous ropes a burner a fuel tank and of course the
a 25kg steel tank having a volume capacity of 250 litres is filled with liquid water at room temperature. what is need
the laminar flame speed of a premixed stoichiometric mixture of propane?air at 1 atm and 298 k is 0.4 ms. estimate the
Volumetric Compression Ration and Mean Effective Pressure of a Diesel Engine, A diesel engine has air before compression at 280 K and 85 Kpa. The highest temperature is 2219 K and the highest pressure is 6 MPa.
water at 1mpa and 65oc enters a tube of a boiler which has a constant 160mm inside-diameter. the water leaves the tube
a 200-w vacuum cleaner is powered by an electric motor whose efficiency is 80. note that the electric motor delivers
oil viscosity 0.003 pa s specific gravity 0.85 is confined between two concentric circular cylinders of infinite
a 14 mm diameter 50 mm long mild steel rod undergoes a stress test. a tensile force of 18800 n is applied and the rod
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