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A close rigid tanks with a volume of 2 m3 contain hydrogen gas initially at 320 K and 180 kPa. Heat transfer from a reservoir at 500 K takes place until the gas temperature reaches 400 K.
Calculate the entropy change and entropy production for the hydrogen gas during the process, both in kJ/K, if the boundary temperature for the gas is the same as the gas temperature throughout the process and Determine the entropy production, kJ/K for an enlargers system which includes the tank and reservoir
team dynamic are based on a number of interpersonal and environmental factors that influence a teams behavior. what
refrigerant r-134a with a mass of 0.08 kg is expanded adiabatically from a superheated vapor at 10 bar 40 c to a
a single plane glass window is used in a heated dwelling. outside the dwelling the ambient temperature is 0degc while
consider a non-ideal vapor-compression cycle where refrigerant 134a flows at a rate of 0.05 kgs. the refrigerant enters
saturated liquid water at 25 degrees c is pumped to a pressure of 5 mpa in an isothermal process. the specific work
the tank of water in the figure below is given a constant acceleration ax. if the water is not to spill out of the tank
air is cooled and dehumidified as it flows over the coils of a refrigeration system at 1atm from 25degc and a humidity
in 2001 the united states produced 51 of its electricity in the amount of 1.878 1012 kwh from coal fired power plants.
2000 kgh of steam drives a turbine that delivers 75 kw of shaft work. superheated steam at 5 bar enetrs the turbine at
Calculate the modulus of elasticity of the aluminium alloy. Use the modulus to determine the length of a 1.25 m bar to which a stress of 210 MPa is applied.
a cyclist is moving along a straight path at a speed of 18 mph. micros microd 0.43. determine the minimum distance h
refrigerant 134a is the working fluid in an organic rankine cycle. saturated vapor at 60degc enters the turbine and the
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