Steam at a pressure of 3.5 MPa is known to have a specific volume of 50x103 m3/kg. What is its specific enthalpy in kJ/kg?

Q: Calculate the mass of the hot water per day produced with temperature of 500C from a cold water of…

A: Given dataTi=50°C,  To=10°Cn=10, A=2m2Q=2400 wh/m2/day

Q: Identify whether the water with the following condition is subcooled liquid, saturated liquid, wet…

A: It is required to determine state of water

Q: a) Prove that water freezes spontaneously at -3. 00 °C and 1. 00 atm, given that Cp, solid = 38. O…

A: Given DataTf=-3°C∆Hfus=6.008kJmol-1CP(Liquid)=75.3JK-1mol-1CP(Solid)=38JK-1mol-1P=1atm

Q: Paragraph 9: It is known that curves A, B, C and D are Isobaric, Isothermal, Adiabatic, Isochoric…

A: Use slope constant in pressure volume diagram to solve the problem

Q: 4. The phase state of hydrocarbons in reservoirs is usually studied by diagram.

A: Answer is phase Diagram

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Q: 14. Horizontal lines in phase change region on T-S diagram represents isothermal and constant…

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Q: team at 0.029 MPa has a dryness of 60%. Find its Entropy in kJ/kg-k choose the correct final answ

A: Given:Pressure ,P=0.029 MPadryness fraction, x=60 % or 0.6

Q: Identify if the following phase is saturated, subcooled, superheated, or wet-mixture. Temp Pressure…

A: Given Data P=10.45 MPa T=315°C

Q: determine the properties of H2O using steam table  1. saturated liquid at  T= 253.5 deg C please…

A: Given condition T = 253.5 °C The aim is to determine the properties of saturated liquid at 253.5 °C…

Q: Steam undergoes an Isentropic process where it is initially at l:05 upa and 304C. The isentropic…

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Q: 3. Please consider the isothermal compression of an Ideal Gas from Vo to Vo/8 at 100 C. a. Please…

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Q: If a dry gas is isothermally mixed with a liquid in a fixed volume, will the pressure remain…

A: It is asked to find the pressure change if dry air is mixed with liquid under constant temperature…

Q: Identify if the following phase is saturated, subcooled, superheated, or wet- mixture. Temp Specific…

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Q: 1. Steam undergoes an Isentropic process where it is imitially at 1 05 upa and 304C. The isentropic…

A: To find: The tsat2, dryness fraction and change in enthalpy. Given: The initial pressure is P1=1.05…

Q: A Cl engine, during suction stroke, draws Air only Mixture of diesel and air A mixture of oil and…

A: Basics of Thermodynamics are used.

Q: Identify if the property of the following steam

A: Given data:

Q: What is the resulting temperature of a mixture if 65 kg of water at 26°C is poured into 15 kg of ice…

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Q: The equivalent evaporation of a boller is found to be 22500 kg/hr. Stiam is produced at 20 bar…

A: The sloution is given below

Q: 5.2m3 container contains 71% of methane and 29% of nitrogen gas mixture with an equal mass of…

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Q: Why do you think the natural gas has less pollution for its specific calorific value against other…

A: The Natural gas has many applications such as cooking, power plants, automobiles etc.

Q: 1. Calculate AH, AE, W and Q, in KJ when this ideal gas reaches pressure equilibrium isothermally (1…

A: Given:

Q: dentify if the following phase is saturated, subcooled, superheated, or wet-mixture. Temp Specific…

A: To identify: The phase of the substance. Given: The temperature is T=202°C. The specific entropy is…

Q: 3. Consicer an ideal gas mixture of Coz and H20(Yco,-0.30) at 3000k %3D and 1.0 M Pa. (i) The gas…

A: Given Data

Q: It is claimed that a certai adaibatic proecess will take air from the state 10 bar, 1000 K to the…

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Q: A unit mass of air is heated in a piston-cylinder device from 35°C to 185°C at a constant pressure…

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Q: (b) Find the specific volume, internal energy, and enthalpy and of wet steam at 5 bar, dryness…

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Q: Calculate the specific enthalpy of a steam at 27.5 bar with 0.8 as dryness fraction. (Leave your…

A: Given:P=27.5 barx=0.8

Q: Define the Exergy Destroyed During Stirring of a Gas.

A: Exergy has been a primary tool under the second law of thermodynamics. Exergy efficiency becomes…

Q: 1. According to the P-T diagram of a a) What is the curve A-B? What is the curve B-C?…

A: (a) A-B : bubble point line B-C : Dew point line (b) Phase at D : liquid Phase at H : Two phase…

Q: 3) A large tonk initially contains 200 gallons of brine in ur/e 15 lbs. 0f salt is dissolved.…

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Q: 2. Sketch the real gas liquid gas phase equilibria at different isotherms (P vs specific vol.)…

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Q: Pure substance can have more than one phase, provided chemical composition is the same True False

A: It is true that pure substance can have more than one phase, provided chemical composition is the…

Q: Example 1: Calculate the volume of a cow dung based biogas plant required for cooking needs for a…

A: Given:  Cooking needs of family of 5 adults and lightening need with two 100 C.P lamps for three…

Q: T, (C) P, (kPa) v( m / kg) Phase description a 250 0.65 b. 125 Saturated vapor 350 750 e 120 500 J…

A: a = 127.4°C b = saturated vapour c= 232.2 kPa d= 0.77 m³/kg e= 0.378m³/kg j = 2.77 m³/kg f = mixed…

Q: An ideal gas (C, - 30kJ/kmol* K) at 1MPA and 295 K enters in a equipment which is isolated thermally…

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Q: Find the missing properties of P, v, u, and x and th phase of ammonia, NH3. a. T = 65°C, P = 600 kPa…

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Q: Methane fuel is burned with air in a boiler system. Temperature and pressure values of combustion…

A: Methane = 50000 kj/kg C = 1.4 Efficiency = 60 % Initial temperature = 25 C Initial pressure = 1 atm

Q: D. How many Btu need to be added to change 5 lb of ice at 30°F to steam at 215°F? Refer to tables…

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Q: 6. For s steam at 25 bar with dryness fraction of 0.55. Determine entropy energy.

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Q: Calculate the entropy values for a pressure of 30 bar at 300 degrees

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Q: Calculate the total vapor pressure above a solution containing 3 mol of X and 4 mol of Y. (For X, P°…

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Q: please use this steam table

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Q: Remember, 1. For values taken from the steam tables: Use them as is, do not round off. 2. For…

A: I have used steam table to fetch the properties of steam and also while doing interpolation atmost…

Q: i. ii. iv. Draw a schematic diagram of each problem with labels of states of a substance; For…

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Q: In a heat exchanger two stream of water mix to each other at 300 kPa constant pressure. The cold…

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Q: Suppose 1.17 kg of water at 19.3 C is mixed with 1.33 kg of water at 94"C. After equilib- rium is…

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Properties of Pure Substances

A substance with fixed chemical composition throughout is called a pure substance like water, air, and nitrogen. A pure substance does not have to be a single element or compound. A mixture of two or more phases of a pure substance is also a pure substance as long as the chemical composition is the same for all phases. These substances mainly have a constant/ uniform composition. The substances also have fixed boiling and melting points. A pure substance takes part in a chemical reaction to form predictable products.