The volume of 1 kg of helium in a piston-cylinder device is initially 5 m³, Now helium is compressed to 2 m3 while its pressure is maintained constant at 130 kPa, Determine the initial and final temperatures of hellum as well as the work required to compress it, in kJ. The gas constant of helium is R= 2,0769 kJ/kg-K. The initial temperature of helium is 130000 K The final temperature of helium is 455000 K. 455 The work required to compress helium is kJ.

Q: A system containing air undergoes a polytropic process (polytropic exponent n= 1.3). During the…

A: Given:Polytropic index, n=1.3P1=100 kPaP2=1000 kPam=0.001 kgT1=10o C

Q: liquid R-134a to flow out until the final mass in the tank is 0.25 kg and then the valve is closed…

A:

Q: Argon gas is filling up a piston-cylinder device initially at 120 kPa, 27°C, and 0.25 m3. The argon…

A:

Q: takes 675 J of work to compress quasi- culate the temperature

A: we have to determine the temperature of a isothermal system undergoing compression

Q: Initially, a rigid tank contains 500L of water at 300°C. By volume, the tank contains60% liquid and…

A:

Q: Three moles of an ideal gas expand isothermally at 400 K to 3.0 times the initial volume. What is…

A: Thermodynamics

Q: A piston-cylinder device initially contains 0.4 m^3 of saturated water vapor at a pressure of 200…

A: Answer: The required voltage for the electric resistive heater is 22.3611 Volts.

Q: A refrigeration system uses R 12 as the refrigerant. The system is evacuated, then charged with…

A:

Q: Three kilograms of water at 30°C are placed in a piston cylinder device under 1.0 MPa absolute…

A: The mass of the water, The initial temperature of the water, The initial pressure of water, The…

Q: A vessel having a volume of 2m3 contains 0.02m3 of saturated liquid water and 1.98m3 of saturated…

A: given data  v total = 2m3 V2 = 0.02m3 Vg = 1.98m3 P =100 KPa     to find  1) ML in KG 2) mv in KG 3)…

Q: A piston-cylinder device initially contains 0.6 m3 of saturated water vapor at 250 kPa. At this…

A:

Q: A 0.8 m' rigid tank contains refrigerant-134a initially at 1.80 bar and 30 percent quality. Heat is…

A:

Q: 1m of saturated liquid water at 200°C is expanded until its quality is 80 percent and the pressure…

A:

Q: Initially, a rigid tank contains 500L of water at 300°C. By volume, the tank contains 60% liquid and…

A: Qin+m1u1+m2u2-mfhf=0Qin=m2u2+mfhf-m1u1

Q: A metal tank contains air at 20 C and 400 kPa. The tank volume is 5 m³. It is connected through a…

A: given; →tank 1st;→temperature(T1)=200c=293K→pressure(P1)=400KPa→volume(V1)=5m3→for tank 2;→mass of…

Q: Initially, a rigid tank contains 50OL of water at 300°C. By volume, the tank contains60% liquid and…

A:

Q: A frictionless piston-cylinder device and a rigid tank contain 2 kmol of an ideal gas at the same…

A: GIVEN DATA - Rigid tank contain 2kmol of ideal gas Temprature difference =10'C concept used- ideal…

Q: A rigid tank whose volume is unknown is divided into two parts by a partition. One side of the tank…

A: Answer: The final temperature of the gas is 3327℃.

Q: HELP ME WITH THIS THERMODYNAMIC PROBLEM Subcooled water at the pressure of 10 MPa and temperature…

A: determine the work and heat transfer in the process

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.