Concept explainers
The composition of a liquid with suspended solid particles is generally characterized by the fraction of solid particles either by weight or mass,
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FLUID MECHANICS FUNDAMENTALS+APPS
- An unknown gas with a mass of 1.5 kg is contained in a bottle of 1.17 m3 at a temperature of 27 degrees Celsius and a pressure of 2 atmospheres (bar). If you know that the value of the general constant for gases is 8314 joules / kilogram degrees Kelvin. Calculate the gas constant and determine the type of gas. *arrow_forwardT F The specific weight of a fluid is the product of the fluid's density and the acceleration due to gravity. Stronger surface tension leads to higher capillary rise. Absolute pressures are frequently negative. If the pressure of fluid drops below the vapor pressure of that fluid at that temperature, the fluid will cavitate. F F T F F Density can be measured in lb;/ft° in the English system of units. For a hydrostatic incompressible fluid, pressure is independent of depth. A fluid with a high bulk modulus of elasticity is more difficult to compress than one with a low bulk modulus of elasticity. Viscosity is caused, in part, by the surface tension within a fluid. A fluid can resist an applied shear stress by deforming. Pressure increases faster with depth in less dense fluids than in more dense fluids. T F F F F Farrow_forward9arrow_forward
- H,0 Iron block An unknown mass of iron at 80 °Cis dropped into an insulated tank that contains 0.1 m of liquid water at 20 °C. Meanwhile, a paddle wheel driven by a 220 W motor is used to stir the water. When equilibrium is reached after 30 min, the final temperature (T2) is 27 °C. Part A Determine the mass of the iron block. Express your answer to four significant figures and include appropriate units. Value Units Submit Request Answer Part B What-if scenario: What is the mass if the iron block is at 130 °C at the time of dropping? Express your answer to four significant figures and include appropriate units. HA Value Units Submit Request Answerarrow_forwardIn a power plant operating with water and steam, the following measurements and observations were done at various stages along the system. the pressure is 150 kPa and the enthalpy, h is 1580.115 (kJ/kg) For this case, the Temperature, in oC, is most likely: 250 105.97 111.35 130 116.04arrow_forwardNOTE: Complete manual computation. Show the integration method and derivation of units. The specific heat of a certain ideal gas is given as a function of 345.1 4.13 x 104 KJ temperature: Cp = [1.54 - when temperature increases %3D T T2 kg K from 325°K to 1,100°K. Find the change of enthalpy.arrow_forward
- 1. In general, the internal energy U depends on both temperature and volume, U=U(TV). The volume dependence comes from the potential energy due to the interactions among the particles. For free particles, there are no interactions, thus, the internal energy U should be independent of the volume, i.e., = 0. Verify this result for ideal gas pV = RT. au avarrow_forwardPlease show your solution on a paper with complete unit of measures. Will get a ?arrow_forwardDetermine the specific volume of superheated water vapor at P bar and T°C based on: a) the ideal-gas equation b) the generalized compressibility chart, and c) the steam tables. d) Determine the error involved in the first two cases. Select Case # 7 from the Table 1 for Pressure and Temperature Table 1 Given Pressure and Temperature Case # Pressure (bar) Temperature (°C) 1 40 440 2 40 500 40 540 4 40 600 60 440 6 60 500 7 60 540 8 60 600arrow_forward
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