An adiabatic expansion of air occurs through a nozzle from 830 KPa and 750C to 140 KPa. The initial kinetic energy is negligible. For an isentropic expansion, 4.1 Determine the specific volume 4.2 Determine the final temperature 4.3 Solve for the speed at the exit section

Q: Four pounds of air gain 0.491 Btu/°R of entropy during a non- flow isothermal process. If P1 = 120…

A: Given: The mass of air, m = 4 lb The entropy gain, ds = 0.491 Btu/oR The initial pressure, P1 = 120…

Q: an airstream with a velocity of 650 m/s static pressure of 222 kpa and a static temperature of 452 k…

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Q: The adiabatic compressor shown in the figure operates steadily using Hydrogen with the following…

A: Write the given information.

Q: Heat flows from a hot reservoir at 800 K to another reservoir at 250 K. H entropy change of the…

A: Given, Temperature of hot reservoir = Th = 800 K Temperature of cold reservoir = Tc = 250 K Total…

Q: Ammonia with MW=17, weighing 22kg is confirmed inside a cylinder equipped with a piston has initial…

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Q: If stream 5 is saturated liquid with H5 = 259.636 kJ/kg and P5 = 22 kPa, what is the enthalpy of…

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Q: 5- An aircraft is flying at an altitude of (12000 m) (T = 216.65 k, P = 0.193bar) at a Mach number…

A: Given data: The altitude of aircraft can be given as h = 12000 m The temperature at the given…

Q: A pressure relief valve is installed in a rigid 25-L steam cooker to release vapor and maintain…

A: To determine the smallest entropy change of the thermal energy reservoir.

Q: Steam with specific enthalpy of 3278kj/kg goes through nozzle at station A velocity of 20m\s. If the…

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Q: vessel. The vessel is heated until the pressure is 2500 kpa. Compute of the change of entropy in…

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Q: Air enters an ideal nozzle at a pressure of 45 psig with a temperature of 1,340°F The pressure at…

A: Given Data ⇒ Air enters in a nozzle Pressure at the entry point is P1=45 Psig Since we know that…

Q: There is air at a temperature of 300 K and a pressure of 150 kPa in a closed container of constant…

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Q: Air is compressed isentropically (PV^1.4 = c) to twice its pressure. If the initial temperature is…

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Q: If 4000J of heat tansfer occures from a hot reservoir at temper ature equal to 600 K to a cold…

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Q: Q3/ 0.34 m' of a perfect gas at constant pressure of 2.8 bar is heated from 100°C to 300°C and it is…

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Q: Four pounds of air gain 0.491 Btu/°R of entropy during a non-flow isothermal process. If P1 = 120…

A:

Q: A large fridge freezer is to extract 80 kJ of energy every second from inside of the fridge,…

A: We are suppose to solve only 3 subparts. Please post other parts as a separate question.

Q: If 10 kg/min of air are compressed isothermally from P1=96kPa and V1=7.65m^3/min to P3=620kPa, find…

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Q: Problem 2. Ideal gas Oxygen (O2) flows through a well-insulated (adiabatic) nozzle.  The…

A: (1) Solution : As the oxygen is ideal gas. The density of oxygen at point 1 is calculated as :

Q: Q1: Steam at 2 Mpa and 250 C is expanded isentropically to 0.36 Mpa and it is then further expanded…

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Q: A type of liquid (density = 1500 kg/m3) passes through an adiabatic nozzle having an inlet diameter…

A: Given Data: The inlet diameter of the nozzle is d1 = 6 in. The density of the liquid is ρ= 1500…

Q: An ideal gas with a mass of 2 kg reversibly and polytropically expands up to 3 times its initial…

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Q: Air enters the tower at the rate of 60 kg/s.  The entrance enthalpy is 86 KJ/kg and exit enthalpy of…

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Q: If 8.5kg of of air are compressed isothermally from 90kPa 8m3 to 600kPa. Find the change in entropy…

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Q: 6. Steam flowing in a pipe at 18 bar is reduced to a pressure of 1 bar and 125 °C through an orifice…

A: Introduction: Orifice plates are one of the most widely used devices for measuring and controlling…

Q: nd k = 1.26. If 20 Btu are added to 5 lb of this gas at constant volume when the initial temperature…

A: Given: R=58.8 ft-lb/lb-0R k=1.26 Q=20 Btu m=5 lb Process- constant volume process Initital…

Q: SET B: Five liters of air initially at 550K and 450 kPa is used in a Carnot engine and expanded to…

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Q: Q2: A steam engine receives steam at 4 bar, dryness fraction 0.8, and expands it according to law…

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Q: Steam at 9000 kPa and 600 C passes through a throttling process so that the pressure is suddenly…

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Q: 20. If 10 kg/min of air are compressed isothermally from P1 = 96 kPa and Vi = 7.65 m³/min to P2 =…

A: For a non-flow process: mass remains the same. The initial temperature of the air can be determined…

Q: Steam at 15 bar and 300°C expanded in a nozzle till its pressure falls to 1 bar. If the 12% of…

A: The solution is in next step

Q: 2 .A two-stroke four-cylinder ideal Otto engine operates at 4800 rpm. Air is taken in at 101 kPa and…

A: Given data A  two-stroke  four-cylinder  ideal  Otto  engine  operates  at a speed =  4800  rpm Air…

Q: Water with mass of 9.7 kg is initially at 800 kPa with entropy of 7.957 kJ/kg. K. It then undergoes…

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Q: Hot gases enter a jet engine turbine with a velocity of 50 m/s, a temperature of 1200 K, and a…

A: Please find the solution below

Q: Q.) A piston-cylinder device contains air at initially 1000 kPa and 200°C. The air is first expanded…

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Q: Q4: Converging-diverging nozzle having exit Mach number equal to 2 while the inlet velocity equal to…

A: Supersonic flow is typically designed to be produced near the exit plane with a converging-diverging…

Q: • Four pounds of air gain 0.491 Btu/°R of entropy during a non- flow isothermal process. If P1 = 120…

A: Heat is a kind of energy, according to the First Law of Thermodynamics, and thermodynamic processes…

Q: Air enters a compressor at a mass flow rate of 0.04 kg/s with a stagnation pressure of 100 kPa and a…

A:

Q: A thermally well insulated, frictionless piston with initial volume V. contains 2.0 moles of an…

A: given;   →initial volume(V1)=V0→final volume(V2)=2V0⇒initial pressure=P0→number of moles(n)=2

Q: Q.3 A steel bar at a temperature of 500°C is dropped into an insulated bath containing 20 kg water…

A: Data given-   Ts1 = 500°C = 773 K  mw = 20 kg  Tw1 = 120°C = 393 K  Ts2 = Tw2 = 150°C = 423 K  Cpw =…

Q: man purchases a turbine for use in his factory. He sets it up so that there is steam entering at…

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Q: in turbine out (out) Air flows through an adiabatic turbine at 25 kg/sec. If it flows in at 400°C…

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Q: 3. A mass of 0.25 kg of air at 400 °C and 0.9 bar absolute is compressed at constant temperature to…

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Q: Consider a container with two chambers connected by a valve. The first chamber has volume, V1, is…

A: Given data: Chamber 1 containing ideal gas of Volume V1 & Temperature T…

Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.