Carbon dioxide at 30 °C and 330 kPa absolute pressure expands isothermally to an absolute pressure of 155 kPa. Determine the final density of the gas. kg/m³
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- Fluid Mechanics Calculate the density and specific weight of carbon dioxide at an absolute pressure of 400 kN/m2 and 60 degrees Celcuis.The temperature of 1 m3 of water is decreased by 10C. If this thermal energy is used to lift the water vertically against gravity, what is the change in height of the center of mass?At 40 degree Celsius and 300,000Pa, the specific weight of a certain gas was 14,500N/cu.m. Determine the gas constant of the gas
- at 38 degrees celsius and 218 kpa gage, the specific weight of a certain gas was 15.0 n/m^3. determine the gas constant of this gas in j/(kg-kelvin).a cylinder of 0.9 m cube in volume contains air at 0°c and 39.24n/cm^2 absolute pressure. the air is compressed to 0.45 m^3.find(1) the pressure inside the cylinder as a isothermal process, (2)pressure and temperature assuming adiabatic process . take k=1.4 for air.1. If the work done 10000 cal, and the initial pressure 100 atm, when the ideal gas | expand isothermally and reversibly from the initial l volume (V1) to the final volume (10 V1), R = 1.987 cal/mole.K. ~ (A) calculate V1. (B) If there are - 2 moles from ideal gas what is the temperature.
- A 10-kg mass of superheated refrigerant-134a at 1.2 MPa and 70°C is cooled at constant pressure until it exists as a compressed liquid at 20°C. (a) Show the process on a T-v diagram with respect to saturation lines. (b) Determine the change in volume. (c) Find the change in total internal energy.Convert a pressure head of 10 m water column to kerosene of specific gravity equal to 0.8 and to Carbon tetrachloride of specific gravity 1.6Determine the kinetic energy flux in watts of 0.02 m3/s of soil (s.g.=0.9) discharging through a 58-mm diameter nozzle.
- (a)In geothermal aquifer, explain the process of energy extraction from twin borehole system. (b)A geothermal aquifer at a temperature of 90 o C is 18 m thick and 120 m wide. The density, specific heat, and permeability are 2.6x10 3 kg/m3, 1000j/kg.C and 2x10 -9 s-m 3 /kg. In order to produce a power of 0.8 MW, estimate the volume flow rate and pressure drop required for a borehole separation of 800 m. The inlet temperature of cold water is 15 o C.0.05 kg of steam at 1.5 MPa is contained in a rigid vessel of volume of 0.0076 m^3. A. What is the temperature of the steam? B. If the vessel is cooled, at what temperature will the steam be just dry and saturated? C. Cooling is continued until the pressure in the vessel is 1.1 MPa, calculate the amount of vapor at this point. D. Calculate the amount of heat rejected between the initial and the final state. E. Draw the Ts diagram of the whole process.Oil is subjected to a pressure of 300 kpa at A, where its velocity is 7m/s. Determine the pressure at B. Density of oil= 940kg/m3