Steam at 3.5 MPa initially has a temperature of 350C. It was then cooled in an isobaric process until all of it was turned into saturated liquid. Solve for the change in enthalpy.

Q: 2kg of air occupying 0.7 m3, had an original temperature of 15°C. It was heated then at constant…

A: Given that, mass of air =2kg volume of air =0.7m3 initial temperature=15°C…

Q: A 200 liter tank initially contains water at 1000 kPa and 1% quality. There is a heat transfer to…

A: Given that: V = volume of the tank = 200 liters P1 = initial pressure = 1000 kPa x1 = initial…

Q: An ideal gas enclosed in a 1.77ft3 rigid tank initially at 70°C and 0.93kg/cm2 . Find the…

A: Given data,  V1= 1.77 ft3 = V2 (volume of tank is going to be constant.)  T1= 70°C = 343 K  P1= 0.93…

Q: For ammonia , the temperature at -60°f and pressure is 5.3psig Determine internal energy and…

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Q: Find the volume, the internal energy and the enthalpy of 2.5 kg of compressed liquid at 7.5 MPa and…

A:

Q: One pound of air at 17.2 psia, 450 F is heated at constant volume until the temperature becomes 630…

A: Write the given data with suitable variables: m=1 lbmP1=17.2 psiaT1=450 °FT2=630 °F

Q: Saturated liquid water at 500 kPa is throttled to a pressure of 200kPa. What is the finial…

A: According to the given data P1=500KPa and quality x=0 (Saturated liquid) P2=200KPa Throattling…

Q: Q) Saturated (liquid+ vapor) ammonia at 60°C

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Q: The tank contains 2kg of water at 20C, 1 atm. The tank is heated. When the tank pressure reaches…

A: Write the given data. m1=2 kgT1=20 °CP1=1 atmP2=300 kPa

Q: If 10 kg of ice at 0C is added to 2 kg of steam at 100C, the temperature of resulting mixture is

A:

Q: work against the piston. How much work is done during the process? How much error would be made by…

A: To determine the work done in the process and percentage error in the steam behaviour in ideal…

Q: For the situations below briefly explain how you obtained the values and provide the numerical…

A: It is required to determine properties for given process

Q: You have steam at 700°C with specific volume 0.230.  Calculate its specific enthalpy in KJ/kg.

A: Calculated specific enthalpy in KJ/kg.

Q: Water with a quality of 53.5% and pressure of 200 kPa is inside a rigid tank.The tank is heated by…

A: Given, Quality of the water (x)=0.535 Pressure of water=200kPa heat supplied by the heater=120W…

Q: 4. A rigid tank initially contains 5kg of saturated vapor steam at 150°C. Heat transfer is done…

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Q: Steam is expands from a pressure of 4 bar and 70°C to a pressure of 1.4 bar. If the expansion is n…

A: The answer is in below steps

Q: Required information A piston-cylinder device contains 0.66 kg of steam at 300°C and 0.5 MPa. Steam…

A: Write the given values with the suitable variables.Here, m, T, and P are the mass, temperature, and…

Q: Assume 20 lbm of an ideal gas with R=50 ft-lb/lb-R and k=1.18 are heated from 75 to 200F. What is…

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Q: Steam at 1.4 MPa initially has a temperature of 200C. It was then cooled until all of it was turned…

A:

Q: A quantity of air is heated from 30 °C to 110 °C. Assume air is an ideal gas, in which is has…

A:

Q: Thermodynamics. Please show the complete and step by step solution. Steam has a quality of 95% at a…

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Q: 0.75 Ibm of oxygen is initially at 30 psi and 50°F. The oxygen expands in an isobaric process until…

A: Given data: Mass of Oxygen, m=0.75 lbInitial pressure, P1=30 psiInitial temperature, T1=50°FFinal…

Q: In a closed system, some water is heated to 50 oC. Then it is taken the air by vacuum in the system.…

A: A closed system in the thermodynamics is a system in which there is no transfer of mass occurs in or…

Q: Water vapor at the throttling valve inlet in a piping circuit at 4MPa pressure at 300 °C is at the…

A: Given Data State 1: 4 MPa, 300°C Throttling process

Chemical and Phase Equilibrium

Phase diagrams or equilibrium phase diagrams are the graphical representations that show the phase transformations of the constituting elements with respect to the pressure, temperature, and compositions. The diagrams show the conditions that limit the different phases, namely solid, liquid, and gas. The diagram can also be utilized to verify the relations between the state variables. Most of the phase diagrams are temperature-pressure phase diagrams, with the variable parameter as the composition. Usually other variables such as solubility and pressure parameters are not indicated in the phase diagram. For a one-component system (unary phase diagram), the phase diagram is generally a function of temperature and pressure as the state variables, or temperature and volume. However, for a binary system (two-phase) having two components, the phase diagram is a function of temperature and composition as the state variables only. Coexisting of the different phases of the constituting elements is indicated in the phase diagram. A ternary phase diagram can be characterized by consisting of three phases in equilibrium.