Steam is accelerated by a nozzle at a steady mass flow rate of 2 kg/s. If the steam at the nozzle exit is at 400°C and 3 MPa, and its velocity is 180 m/s, what is the exit area of the nozzle? If the velocity at the inlet of the nozzle is 80 m/s, what is the enthalpy of the steam at the inlet?

Q: A piston-cylinder device contains a saturated water. During a constant- pressure process, 538 kJ of…

A: Given dataHeat transferred to the surroundings Q = 538kJTemperature of the surrounding T = 230 =…

Q: Air enters a compressor at 105 Pa and 35°C having volume of 1.7 m3/kg and is compressed to…

A: Given data as  Initial Pressure (P1)= 105 Pa Initial Temperature (T1)= 35°C…

Q: The cooler at 200 kPa and 25°C-134a flows along a cooling line. Calculate the specific volume of the…

A: For 200kPa of R134a the saturated temperature is -10.090C So, the given state is superheated

Q: 1.5-lbm of water at 350 psia fill a weighted piston-cylinder device whose volume is 1 ft3. The water…

A:

Q: Saturated liquid refrigerant 134a at 900 kPa is throttled to a pressure of 200 kPa. What is the…

A:

Q: Air enters a 28-cm diameter pipe steadily at 200 kPa and 20C with a velocity of 5 m/s. Air is heated…

A:

Q: team enters an adiabatic, turbine at 9 MPa, 550°C and 85 m.s and exits the turbine at 80-kPa, 55-m/s…

A:

Q: Saturated vapor R-134a at 500 kPa is throttled to 200 kPa in a steady flow through a valve The…

A:

Q: Sleäm at a pressure of Ра and lemperaure Is passed al a constant rate into a desuperheater unit. The…

A: Solution: State properties at state 1   (Before massing through desuperheater)…

Q: 7-107 A constant-volume tank contains 5 kg of air at 100 kPa and 327°C. The air is cooled to the…

A:

Q: Consider a quasistatic isothermal expansion of an ideal gas from Va ---> Vb at temperature Th. If…

A: Given: To determine the change in entropy of the gas for isothermal expansion process.

Q: What is the amount of change in entropy if the process is Isothermal (in kJ/K)?

A: for solution refer below images.

Q: Steam enters a turbine at 10,000 kPa and 500 °C, and exhausts at 100 °C with an enthalpy of 2000…

A:

Q: Steam enters a nozzle at 800 kPa and 280°C at negligible velocity and discharges at a pressure of…

A: Given:Initial pressure and temperature of steam, P1=800 kPa and T1=280°CFinal pressure of steam,…

Q: Air at 27°C and 5 atm is throttled by a valve to 1 atm. If the valve is adiabatic and the change in…

A: Given: The inlet pressure of the air at the throttled valve is P1=5 atm. The exit pressure of the…

Q: Helium gas is compressed from 16 psia and 85°F to 120 psia at a rate of 10 ft3 /s. Determine the…

A: Given Data: The initial pressure of the helium gas is P1 = 16 psia. The final pressure of the…

Q: A hot stream and a cold stream of helium enter a mixing chamber. Their temperatures are 800°C and…

A: Given that, Temperature of hot stream, Th=800 °C,Temperature of cold stream, Tc=20 °C,Pressure of…

Q: 5 ft3 /s oT air is conmpressed in an adiabatic compressor from an initial state of 14.7 psi and 60…

A:

Q: Carbon dioxide enters an adiabatic nozzle steadily at 1 MPa and 500 °C with a massflow rate of 6000…

A: The objective of the question is to determine the inlet velocity and exit temperature of the CO2 in…

Q: An underground cavern will be used to store energy of compressed air. the cavern has a volume of…

A: Given:Volume of the cavern, V=150000 ft3Initial pressure of the air, Pi=15 psiaFinal pressure of the…

Q: A piston cylinder contains 1.25 kg water at 25°C with a constant load on the piston such that the…

A: Given data:-Initial mass,m1=1.25kgInitial temperature, T1=25°C=298KPressure, P=300kPaFinal mass,…

Q: Saturated vapor enters the turbine at 8.0 MPa and exits 0.008 MPa. The turbine has an isentropic…

A: Answer: The electrical power produced is 21507.3 kW.

Q: Steam Steam enters a nozzle at 600 kPa and 500°C at a velocity of 9.9 m/s. Steam leaves the nozzle…

A: Given DataP1=600kPaT1=500°CV1=9.9 m/sP2=500kPaT2=300°CA1=250 cm2Q=95 kJ/kg

Q: Steam at 500kPa and a quality of 90 percent occupied a rigid vessel of volume 0.3m³. Calculate the…

A:

Q: 900g of steam at 2000kPa fill a weighted piston-cylinder device whose volume is 0.071m3. The steam…

A: Given Data Mass of the steam is : m=900 g=0.9 kg Volume of device is :v=0.071 m3 Pressure of steam…

Q: 9.2- lbm of water at 300 psia fill a weighted pistoncylinder device whose volume is 2.5 ft. The…

A:

Q: A reversible adiabatic nozzle allows air to expand from 600kpa and 700K to 100kpa. If the air enters…

A:

Q: Water at 80°F and 20 psia is heated in a chamber by mixing it with saturated water vapor at 20 psia.…

A: Given data T1=80 °FP1=20 psiaP2=20 psia

Q: Steam enters a diffuser at 20 psia and 240°F with a velocity of 900 ft/s and exits as saturated…

A: Given: The inlet pressure of the steam is P1=20 psia. The inlet temperature of the steam is T1=…

Q: Saturated vapor enters the turbine at 8.0 MPa and exits 0.008 MPa. The turbine has an isentropic…

A:

Q: (6) Steam enters a nozzle at 900°C and 2500 kPa with a velocity of 12 m/s, and leaves at 800°C and…

A: Given, P1=2500 kPa=2.5 MPaT1=900 0C P2=1800 kPa=1.8 MPaT2=800 0C A1=975 cm2=975×10-4 m2 v1=12 m/s…

Q: water at 400 kPa

A: 9.998KJ/k

Q: Steam enters a long, insulated pipe at 1200 kPa, 250°C, and 4 m/s and exits at 1000 kPa. The…

A: Given data as per question Pressure of steam at entry =1200 kpa Temperature at entry = 250°Cvelocity…

Q: Nitrogen gas is compressed from 80 kPa and 27°C to 480 kPa by a 10-kW compressor. Determine the mass…

A: Given: The initial pressure of the nitrogen gas is P1=80 kPa. The final pressure of the nitrogen gas…

Q: K to another reservoir at 250 K. If entropy change of the hot reservoir is - 4 kJ/K, determine the…

A: given:entropy change of hot reservoir=-4kj/kT1=800KT2=250K

Q: Argon gas expands in an adiabatic turbine from 3 MPa and 750°C to 0.3 MPa at a rate of 5 kg/s. The…

A: Given: The initial pressure of the Argon is P1=3 MPa. The initial temperature of the Argon is…

Q: Saturated liquid water at 100 kPa enters a well-insulated pump and exits at 4 MPa. Assume that the…

A:

Q: Saturated Steam at 0.16 Mpa is compressed in an irreversible adiabatic process with an efficiency of…

A: Given, P1 = 0.16 MPa P2 = 0.45 MPa And efficiency is given as 80.24 %

Q: A diffuser contains air entering at 100 kPa, 27°C, with a velocity of 200 m/s. The inlet and exit…

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Q: The water vapor that is at 3.00 MPa and 540°C goes through a pipe with a 0.40 m^2 cross sectional…

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Q: Steam enters an isothermal compressor at 400 0C and 400 kPa. The exit pressure is 10 MPa, determine…

A:

Q: Helium gas enters an adiabatic nozzle at 37 psia and 790 R with an initial velocity of 9 ft/s. The…

A: Given data,

Entropy

In physics, entropy means the amount of disorder or the degree of randomness associated with a thermodynamic system. The system is not self-organized when the entropy of the system is high. For instance, when a system is at an elevated temperature, its molecules are in random motion, vibrating and colliding with each other. During this scenario, the probability of finding a molecule at a particular place twice, is low. Under this circumstance, the system can be said to be in a high entropy.