Carbon dioxide enters an adiabatic nozzle at 1200 K with a velocity of 50 m/s and leaves at 400 K. Assuming constant specific heats at room temperature, determine the Mach number (a) at the inlet and (b) at the exit of the nozzle. Assess the accuracy of the constant specific heat approximation.

Q: A converging nozzle Is fed with air from a large reservoir where the . temperature and pressure are…

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Q: Air enters a nozzle at 200 KPa, 360 K and a velocity of 180 meter per second . Assuming isentropic…

A: Given: T = 360 K V = 180 m/s k = 1.4

Q: What is the specific enthalpy (kJ/kg) and specific entropy (kl/kg-K) of a steam with a specific…

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Q: Calculate the critical temperature, pressure, and density of (a) air at 200 kPa, 100°C, and 325 m/s,…

A: Given data: The temperature of the air is Tair=100 degrees The temperature of the helium is…

Q: Helium gas expands isentropically from 2.2 MPa and 77°C to 0.4 MPa. Calculate the ratio of the…

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Q: what are the specific volume, internal energy, enthalpy, and entropy of steam at 1.50 Mpa and 254…

A: Given data:

Q: thru a narrow orifice while undergoing expansion at 300 kilopascals at 450

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Q: Calculate the change in entropy per kg of air when it expands isothermally from 8 MPa to 4 Mpa.

A: The given data are: P1=8 MPaP2=4 MPa Here, P1, and P2 represent the initial and final pressure.

Q: A diatomic gas in 15-L rigid container at 25 ⁰C and 4.8 atm is heated to 40 ⁰C. Determine the change…

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Q: Argon gas is approaching a converging–diverging nozzle with a low velocity at 20°C and 150 kPa, and…

A: The mass flow rate at the throat can be expressed as, From the ideal gas relation,

Q: perature are 200 kPa and 300 K, respectively, determine the following: (a) A for flow from inlet to…

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Q: As an airplane flying with constant velocity moves from a cold air mass into a warm air mass, how…

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Q: Question 22 Air enters a nozzle at 200 KPa, 360 K and a velocity of 180 meter per second. Assuming…

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Q: b) Air flows through a cylindrical duct at a rate of 2.3 kg/s. Friction between air and the duct and…

A: Given: For air, The mass flow rate, m = 2.3 kg/s The inlet temperature, T1 = 450 K The inlet…

Q: Air enters a 5.5-cm-diameter adiabatic duct with inlet conditions of Ma1 = 2.2, T1 = 250 K, and P1 =…

A: Write the values of pressure ratio and temperature ratio at duct inlet corresponding to the Mach…

Q: Air is flowing in a wind tunnel at 12°C and 66 kPa at a velocity of 190 m/s. The Mach number of the…

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Q: Air enters a nozzle at 0.5 MPa, 420 K, and . Approximating the flow as isentropic, determine the…

A: Given data

Q: N2 enters a steady-flow heat exchanger at 150 kPa, 10°C, and 100 m/s, and it receives heat in the…

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Q: Air enters a nozzle at 30 psia, 630 R, and a velocity of 450 ft/s. Assuming isentropic flow,…

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Q: Air is driven from a reservoir at 1.3 MPa through a converging-diverging nozzle with a design Mach…

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Q: What is the specific enthalpy (kJ/kg) and specific entropy (kJ/kg-K) of a steam with a specific…

A: Given Data: Pressure, P=2.25 MPa Specific volume, v=125x10-3 m3/kg

Q: A combustion chamber consists of tubular combustors of 15-cm diameter. Compressed air enters the…

A: Given, P1 = 4880 kPa T1 = 550K V1=80 m/s Air-Fuel ratio = 40 Heat flow rate = 42,000 kJ/kg From…

Q: 1- An ideal gas with k = 1.4 is flowing through a nozzle such that the Mach number is 2.4 where the…

A: To find: The flow area at the location where the Mach number is 1.2. Given: The gas is ideal, and…

Q: An aircraft is reported to be cruising in still air at −20°C and 40 kPa at a Mach number of 0.86.…

A: Given: The Mach number of the aircraft is Ma=0.86. The temperature of the air is T=-20°C. The…

Q: Nitrogen enters a steady-flow heat exchanger at 150 kPa, 10°C, and 100 m/s, and it receives heat in…

A: Given data: T1=10°CV1=100 msP1=150 kPaP2=100 kPaV2=200 msqin=150 kJkg

Q: 1- Air flows through a device such that the stagnation pressure is 0.6 MPa, the stagnation…

A: Whenever the kinetic and potential energies of being fluid a negligible, the properties of the fluid…

Q: Question Four Air flows steadily adiabatically through a pipe with a cross-sectional of 0.002 m?. At…

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Q: What is the difference between entropies of oxygen at 180 kPa and 39°C and oxygen at 180 kPa and…

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Q: What is mass flow?

A: Mass flow: The mass flow is defined as the mass of flow passing through some area in per unit time.…

Q: 4-Steam flows through a device with a stagnation pressure of 120 psia, a stagnation temperature of…

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Q: Q2// Determine the enthalpy, the entropy, internal energy and specific volume of steam Vapor at 1100…

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Q: Some water is compressed from 100 kPa to 5000 kPa at constant temperature. The initial density of…

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Q: What is the mass flow rate in hot stream kg/s?

A: In a constant pressure process, the rate of heat transfer can be determined as the product of mass,…

Q: Air expands isentropically from 2.2 MPa and 77°C to 0.4 MPa. Calculate the ratio of the initial to…

A: Given Data At state 1 P1=2.2MPa  T1=77°C   At state 2 P2=0.4MPa   For air  γ=1.4

Q: xplain the equation for calculating the absolute entropy of superheated water vapor at a temperature…

A: To explain the equation for calculating the absolute entropy of superheated water vapor at a…

Q: 08-The mach number at the exit of a combustion chamber is 0.9. the ratio of stagnation emperatures…

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Q: Reconsider Prob Using appropriate software, investigate the effect of the exit pressure of steam on…

A: First we have to calculate the exit enthalpy at the given pressure and temperature condition from…

Q: Express the Joule coefficient and the Joule – Thomson coefficient as its value for a Berthelot gas.

A: Given Data ⇒ Joule – Thomson coefficient Berthelot gas

Q: For a given Prandtl-Meyer expansion, the upstream Mach number is 3 and the pressure ratio across the…

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Q: Air flows steadily adiabatically through a pipe with a cross-sectional of 0.002 m. At the inlet of…

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Q: Mach number at a certain section in a diverging part of a c-d nozzle is 0.7. At farther section…

A: Given, Mach number at section 1 = 0.7 Mach number at section 2  = 0.4

Q: Air enters a nozzle at 200 KPa, 360 K and a velocity of 180 meter per second . Assuming isentropic…

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Q: Problem (1) Air flow adiabatically in a constant area duct. At the inlet of the duct, the Mach…

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Q: 5.1. Air is flowing steadily and adiabatically through a pipe 2.5 cm internal diameter and 15 m…

A: given data air is flowing steadily and adiabatically through a pipe d = 2.5cm internal diameter l =…

Q: Hydrogen entering a supersonic nozzle at 450 m/s. The inlet conditions are 10 kPa and 450 °C. The…

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Q: When an airplane is flying at a constant speed relative to the ground, is it correct to say that the…

A: Mach number is given by the relation Mach number=Velocity of the aircraftSpeed of sound Now…

Q: Air enters a 5-cm-diameter duct at Mach number = 0.2, a temperature of 550 K and a pressure of 200…

A: Given Data The diameter of the duct is: d=5 cm The mach number at inlet is: M1=0.2 The inlet…

Q: Helium enters a nozzle at 0.5 MPa, 600 K, and a velocity of 120 m/s. Assuming isentropic flow,…

A: Given: p=0.5 MPaT=600 Kv = 120 m/s Solution : for helium : k=1.667R=2.0769 kJ/kgKcp=5192.6 kJ/kgK

Q: how and why the stagnation enthalpy is defined? How does it differ from ordinary static enthalpy

A: The stagnation enthalpy h0 is defined as the sum of static enthalpy and kinetic energy. It is…