R-134a vapor enters into a turbine at 250 psia and 175°F. The temperature of R-134a is reduced to 20°F in this turbine while its specific entropy remains constant. Determine the change in the enthalpy of R-134a as it passes through the turbine.

Q: heats and neglect the changes in kinetic and potential energies. rmine the exit temperature of air…

A: Given data as per question P1=95 kPa, T1=27° C=300 KP2=600 kPa, T2=277°C=550 K

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

A: To find: The electrical power produced. Given: The seam enters the turbine at P1=8 MPa. The exit…

Q: Determine

A: To find : The decrease in temperature during the process and the specific volume  Given :  initial…

Q: A 66-kg copper block initially at 140°C is dropped into an insulated tank that contains 90 L of…

A: The basic concept is that the total change in internal energy will be zero.

Q: Steam at a temperature of 2100C has a specific entropy of 7.1167 kJ/kg-K. Determine the pressure,…

A:

Q: Steam at a temperature of 210C has a specific entropy of 7.1167 kJ/kg-K. Determine the pressure,…

A: We need to use steam table to find the pressure, internal energy, enthalpy and volume as the…

Q: 0.01 kg/s of refrigerant R-12 enters an adiabatic compressor at a pressure of 125 kPa and a…

A:

Q: Hydrogen is stored in a tank (volume is 2.0 m) at a pressure of 500kPa and a temperature of 300K. A…

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

A:

Q: Air inside a cylinder has increased its pressure from 100 KPa to 200 KPa. Evaluate the change in…

A:

Q: In the position shown, block A is moving to the left at a speed of 9 m/s, and the spring is…

A: Given: vA=-9 m/sμk=0.25mA=3.0 kgmB=5.5 kgδ=∆xA=0.8 m

Q: Steam at a temperature of 300C has a specific volume of 0.09765 m3 /kg. Determine the pressure,…

A: Since you have asked a multi-part question, we can provide you the solution to first three sub-parts…

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: An insulated rigid tank contains 4.4 lbs of saturated liquid-vapor mixture of water at 100 kPa. An…

A: Givenm=4.4lbs=4.4×0.453592kg=1.99581kgP=100kPax=25%=0.25

Q: NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to…

A: Given data is

Q: Argon gas enters an adiabatic turbine at 1350°F and 200 psia at a rate of 40 lbm/min and exhausts at…

A: Given data The gas enter at the turbine is T1=1350 F. The gas pressure at the turbine is P1=200…

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: Argon is expanded in an adiabatic turbine from 2 MPa and 500°C to 200 kPa. When maximum work is…

A:

Q: An ideal gas has a molecular mass of 25.1 kg/kgmol is heated at a constant volume from 120°C to…

A:

Q: 10 kg/s of air enters the turbine at a pressure of 120 MPa and 910 K. The air expands Isentropically…

A: Write the given values along with the suitable variables.

Q: saturated vapor enters the turbine at 9.0 mpa and exits 0.009 mpa. The turbine has an isentropic…

A:

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

A:

Q: heating system has a volume of 20 Land is filled with superheated water vapor at 200 kPa and 150°C.…

A: Volume of water = 20 LWater vapour pressure P1 = 200kPaWater vapour temperature T1 = 150o CSteam…

Q: During a heat transfer process, the entropy change of incompressible substances, such as liquid…

A: Change in entropy of incompressible substance during heat transfer process is given by:…

Q: water at 400 kPa

A: 9.998KJ/k

Q: In an open system, 500 kg/h of air is being compressed from 100 kPa at  280 K to 600 kPa and 400 K.…

A:

Q: Water vapor enters a turbine at 6 MPa and 400°C, and leaves the turbine at 100 kPa. Consider the…

A: Inlet pressure, P1 = 6 MPaInlet Temperature, T1 = 400 COutlet pressure, P2 = 100 kPa

Q: Air is compressed in a piston-cylinder device from 90 kPa and 20°C to 600 kPa in a reversible…

A:

Q: Steam at a temperature of 210°C, has a specific entropy of 7.1167 kJ/kg-K. Determine the specific…

A:

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

A:

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.