Question #2 Question #1: Find the state of a closed system containing water substance of given mass as mentioned below. Specify the zone in which the point lies and properties v, u, h & s as appropriate. Also comment on its quality (dryness fraction or 'x') if applicable Property 1 x=0.6 Q# mass 1 1kg 2 1kg H =2200kJ 3 3kg H = 2200kJ Property 2 P = 10bar T = 68°C T = 68.5°C u h S X

1. What should be the water line gage pressure in the ground floor of a building so that water can rise up in the fifth floor which is 15m high? 2. Determine the volume occupied by a 2kg steam at 500kPa, under the following conditions: (a) pressure state (b) pure vapor state (c) 20% moisture content (d) 20% dry When P (kPa) = 500, T (°C) = 151.86, Vf (m³/kg) = 0.0019 and Vg (m³/kg) = 0.3749   3. An automobile tire contains a certain volume of air at 205kPa, and 20°C. The barometric pressure is 100kPa, if due to maintaining conditions the temperature of the air in the tire rises to 70°C, what will be the gage pressure? Assume that the air is an ideal gas and that the tire does not stretch.

Compute the specific volume, temperature, or pressure (as the case may be) using the ideal gas equation of state and generalized compressibility chart. Show your detailed solution. Substance Steam Butane, C4H10 Gaseous 0₂ V T P °C MPa m³/kg 0.60 0.3520 227 -73 3 0.0096 Ideal Gas Equation T P V Using generalized Compressibility chart Z PR N T P V

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Using the following information, determine the vapor pressure of water at 300 °C. Note: We started this problem in week 6 lecture 3. Please refer to the lecture to get started on this problem. You only need to show your work starting from where the lecture left off. H₂0 at T = 179.88 degrees C the vapor pressure is PSAT = 10 bar. The enthalpy of vaporization is 2014.59 kJ/kg V = 0.1944 m³/kg V¹ = 0.001127 m³/kg The equation we left off on in class was, cpf 1 [P² psat dpsat pi psat Tf 1 ∆vapH (TF 1 RAZ Ti dT T2a

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As shown in the diagram, the state of helium gas is changed in such a way that its PV graph is a straight line segment with volume Vo increases to yVo and pressure Po increases to xPo where x and y are arbitrary constants. During this process the total heat transferred to the gas is equal to the heat necessary to double the absolute temperature of the gas at constant volume. What is the maximum ratio for the volume increase? xP, P. Vo

! Required information NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. Consider helium at 350 K and 0.75 m³/kg. Use dP = ()¸dT + (P),dv for calculations. The gas constant of helium is R= 2.0769 kPa-m³ /kg.K. Determine the change in pressure corresponding to an increase of 4 percent in specific volume at constant temperature. (You must provide an answer before moving on to the next part.) The change in pressure corresponding to an increase of 4 percent in specific volume at constant temperature is - kPa.

second slide is data for the problem in slide 1

Need correct final answer (Handwritten recommended)