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- Calculate the relative humidity (in %) of air at db-temperature of 72°F and wb-temperature of 53°F. The air is at a constant pressure of 101.325 kPa. Round your answer to 2 decimal places.What is the phase and pressure of water at 280°C with specific volume 0.92 m3/kg? answer : superheated vapour, 0.2866 MPa Explain how it cameWater at 50°C and 1 atm pressure is heated to 100°C at constant pressure. Using coefficient of volume expansion data, determine the change in the density of water. (Just write the numerical answer. Include - if the answer is negative. No need to put the unit.) Properties of saturated water Volume Specific Thermal Prandti Enthalpy Expansion Number Density P. kgima Conductivity k, Wim - K Dynamic Viscosity H. kgfm -s Heat Saturation of Coefficient G Jkg - K Pr 8, 1/K Liquid Pressure Temp. T. "C Vaporization hng, kkg Pat, kPa Liquid Vapor Liquid Vapor Liquid Vapor Liquid Vapor Liquid Vapor 1854 1857 1862 0.561 0.571 0.580 1.792 x 10-3 1.519 x 10-3 0.0176 1.307 x 10-3 1.138 x 10-3 0.0182 1.002 x 10-3 0.973 x 10-5 1.00 -0.068 x 10-3 0.015 x 10 0.733 x 10- 0.138 x 10 3 0.195 x 10 3 4217 0.0171 0.922 x 10 5 0.934 x 10-5 0.946 x 10 0.959 x 10 0.01 0.6113 999.8 999.9 0.8721 1.2276 999.7 0.0048 2501 2490 13.5 0.0068 4205 0.0173 11.2 1.00 10 0.0094 2478 4194 9.45 1.00 0.0128 0.0173 2466 2454 8.09…
- 1:09 O71VON 2_53057102948... -> Q/ A dry gas reservoir is initially at an average pressure of 5500 psia and temperature of 145F. The gas has a gravity 0.67. What will the average reservoir pressure be when 40% of the original gas(in Scf) has been remained in the reservoir. Assume the volume occupied by the gas in the reservoir remains constant. If the reservoir originally contained 1MM cuft of reservoir gas, how much gas has been produced at a final reservoir pressure of 600 psia.34 Determine the volume, in m’, occupied by 0.9 kg of H;O at a pressure of 6.9 MPa and slsa ve1en ert phivlggA (a) a temperature of 316°C.os TobnilyO-noteiq A IEE For.theIf 15.7 m³ of atmospheric air at 149 degrees centigrade temperature are compressed to a volume of 11.2 m³ at zero degrees centigrade, what will be the vacuum pressure of air in kPav?
- Air is contained in a piston cylinder arrangement as shown in Fig.(Refer attachment). The piston can be assumed to be massless, frictionless, and perfectly insulated. 10 kg of dry ice (solid CO2) is placed on top of the piston. The initial conditions for air inside the cylinder are P1=121 kPa, T1= 300 K. Dry ice sublimates gradually, and its mass reduces to 5 kg. Ambient air is always at room temperature (27oC) and atmospheric pressure. (Given: R=287 J/kg ·K, g = 9.8 m/s2, CP/CV for air = 1.4; Neglect all heat transfer to the dry ice block.) a)Assuming the cylinder to be perfectly insulated, calculate the specific work done for the process. b)Assuming the cylinder to be perfectly conducting, what is the heat required per unit mass of air to complete the process? c) Plot the processes described in (a) and (b) together on a P-V diagram. From this plot, which process appears to have more work? Explain.The gas constant of air is 287 J/kg-K. Convert this so that it will have units of (ft-lbf)/(lbm-R)What is the mass of 2m3 of liquid air at a dry bulb temperature of 210C and a liquid temperature of bulb 150C? (A: 2.37 kg)
- Volume 19. A tank contains 0.50 m^3/kg of steam. Heat is transferred at constant volume until the pressure reaches 100 kpa. Determine the final steam quality. of water havying ML valuo of tomne ture1. The boiling temperature of water is 100 °C. If you put boiling water in a mugplaced at the table top, you observed that after some time the water cools down,decreasing the temperature of water in the mug. Why is this so? Explain using theZeroth Law of Thermodynamics. What happens to objects when temperature increases? For instance, a jar cover an be removed by putting the cover in hot water. Why is this so?A 0.71 cu.m tank contains 5 kg of an ideal gas. The gas has a molecular weight of 45 g/mol and is at 20 deg C. What is the gas pressure?