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Air as an idea gas is compressed from a state where the pressure is 0.1 MPa and the temperature is 27oC to a state where the pressure is 0.5 MPa and the temperature is 207oC. Can this process occur adiabatically? If yes, determine the work per unit mass of air in kJ/kg, for an adiabatic process between these states. If no, determine the direction of heat transfer.
Workout velocity and range of shell fired, Why is it possible to consider the vertical and horizontal motion of a projectile independently of each other.
air flows in a round pipe at a rate of 0.015 lbmsec. the air enters the pipe at a temperature 76.8 of and a pressure
8.80 times 105 gallons of tar sg 1.20 is stored in a 29.0-ft tall storage tank. what is the total mass of the liquid
The angular acceleration of a shaft is defined by the relation a = -0.25w, where a is expressed in rad/s^2 and w in rad/s. Knowing that at t=0 th angular velocity of the shaft is 20 rad/s, determine the time required for the shaft to come to rest.
air is compressed in a standard compressor. its intital state is 100 kpa at 17 c and its final state is 600 kpa and 57
a jeep tows a 400kg block uip a 45deg incline. the coefficients of friction between the block and the ground are us0.5
a 15 scale model of centrifugal water pump was tested. the model pump has am impeller diameter of 10 cm and a rotation
refrigerant -134a at 800kPa and 25 C is throttled to a temperature of -20C. determine the pressure and the internal energy of the refrigerant at the final state.
An ideal vapor-compression refrigeration system operates at steady state with Refrigerant 134a as the working fluid. Superheated vapor enters the compressor at 30 lbf/in2, 20F, and saturated liquid leaves the condenser at 140 lbf/in2. The refriger..
if coal that has 2.25 sulfur and a heat content of 13000 btulb is burned in a 40 efficient 400-mw plant estimate the
a cycle based on a rankine cycle with water as the work fluid must have its highest cycle pressure and temperature at
natural gas is a mixture of methane ethane propane and butane as well as other components . comsider natural gas
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