A piston-cylinder device initially contains 0.5 m3 of saturated water vapor at 200 kPa. At this state, the piston is resting on a set of stops and the mass of the piston is such that a pressure of 300 kPa is required to move it. Heat is slowly added into the system until the volume doubles. Show the process on the PV diagram with respect to the saturation lines and determine: (a) the final temperature, (b) the work done during the process, (c) the total heat transferred, (d) the change in enthalpy, and (e) the change in entropy.

Q: 200 gram of steam at 200kPa are compressed undergoing isothermal quasi-static process at 200oC until…

A:

Q: (b) A mass of 5 kg of saturated water vapor at 300 kPa is heated at constant pressure until the…

A: To find: The workdone by the steam during this process and sketch the process on P-v diagram with…

Q: 6- A mass of 1.2 kg of air at 150 kPa and 12 C is contained in a piston- cylinder device. The air…

A:

Q: Syringe device that is equipped with piston and fixed points functioning as stopper are filled with…

A:

Q: A piston - cylinder device contains 1 kg of saturated water mixture with a quality of x = 0.23 and…

A:

Q: A piston-cylinder device initially contains 0.8 m3 of saturated water vapor at 250 kPa. At this…

A: To findthe final temperature.The work done during this process.The total heat transfer.GivenThe…

Q: Diagram Q ww Water, 90°C x = 0.10 1-kg of water that is initially at 90°C with a quality of 10…

A:

Q: A piston-cylinder assembly initially contains 10 MPa pressure and 10 water vapor at 100 oC. Then,…

A: P= 10 Mpam=10 kgTi= 100 °Ct= 2hr or 2×3600=7200 secV= 220 VI= 20 AmpQR=7500 Kj

Q: Water vapot at 100 kPa and 150 oC is compressed isothermally until half the vapor has condensed. How…

A:

Q: Shown in the figure, an insulated rigid tank is divided into two equal parts by a partition.…

A: Giveninsulated tankm=4kgP1=600kPaT1=300KR=0.287 kJ/kgKCv=0.7180 kJ/kgK∆U=mCvT2-T1

Q: 2. A rigid tank contains 10 kg of water at 95 C. If 8 kg of the water is in the liquid form and the…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: A piston-cylinder device contains 4 kg of nitrogen initially at 100 kPa and 25°C. Nitrogen is now…

A:

Q: A tank, well insulated, has two parts divided by partition. The first part incuded 5,5 kg of water…

A:

Q: A closed cylinder is divided into two parts by a friction-free piston restricted from motion by a…

A:

Q: erature is 32 ASSUMPTIC

A: Given: m= 5 kg  T1  =1500 C  T2 = 3200 C

Q: Q.3) Determine the time required for the 2-kg re frigerant to be converted to a saturated vapor, and…

A:

Q: A 2-m3 tank initially contains a mixture of saturated-vapor steam and saturated-liquid water at 2000…

A:

Q: just need the drawing of both figure, no need solution. 1. A piston–cylinder device initially…

A:

Q: 2 kg of water at T, = 120 °C with quality of x = 78% in a piston cylinder arrangement as shown in…

A: Given: T1=120°C x1=0.78 Mass (m)=2kg Mass of the piston (M)=124kg Cross-sectional area of the…

Q: Hi can you please help with this thermodynamics question? Please be very clear with the formulas…

A: Wp = -301.5 kJ/kg.k change in entropy = 0.7 kJ/kg.kExplanation:Approach to solving the question:…

Q: A 0.68 m3 rigid tank contains refrigerant-134a initially at 100 kPa and 40 percent quality. Heat is…

A:

Q: When a system that use refrigerant-134a at temperature of 95 C at pressure of 1.4 kPa is cooled at…

A: Given: The initial temperature of the refrigerant, T1 = 95°C The initial pressure of the…

Q: Steam at 1 MPa, 250degree C is contained in a rigid vessel. It is now cooled to 25degree C. The…

A: Given data    Steam at pressure=1MPa    Temperature=250°C    specific volume=0.2375 m3/kg    It is…

Q: 2.5 lbm of air is in a piston-cylinder device initially at 50 oF and 100 psia. The air is now…

A: For a polytropic process→T2T1=P2P1k-1k      →T2T1=1378.952689.4761.4-11.4     →T2=283.15×1.219     →…

Q: Water is contained in a cylinder/piston arrangement fitted with upper stops which limit the volume…

A:

Q: Water vapor at the throttling valve inlet in a piping circuit at 4MPa pressure at 300 °C is at the…

A: Given Data State 1: 4 MPa, 300°C Throttling process

Q: Saturated liquid water at 2.0 MPa is throttled to 20 kPa. Determine the fraction of water evaporated…

A: GivenP1=2MPa at Saturated liquid waterafter throttled P2=20kPa

Q: A spring-loaded piston-cylinder device contains of m=1 kg carbon dioxide. Initially, the spring has…

A:

Q: A 166 g block of ice is cooled to -78°C and is then added to 500 g of water in an 80 g copper…

A: Write the values of specific heats of water, ice, and copper and the latent heat of fusion of ice…

Q: Q.3) Determine the time required for the 2-kg refrigerant to be converted to a saturated vapor, and…

A: The problem is based on refrigeration and can be solved as :

Q: 2.6 kg of Steam at 500 kPa and 4000C was cooled in a piston cylinder device until 56% condenses..…

A: mass of steam m=2.6kgpressure P=500kPatemperature T=400oCcooled in piston until 56% condenses

Q: A rigid tank contains 2kg of saturated water vapor mixture at temperature of 50 degrees C and…

A:

Q: A frictionless piston-cylinder device contains 0.25kg of saturated vapor refrigerant 134a at 200kPa.…

A:

Q: Determine the temperature

A: At 200 degree u=2642.9KJ/Kg   h=2855.4 KJ/Kg At T                 u=?                      h=2893…

Q: A vessel of 2 m3-capacity is filled with 0.02 m3 of liquid water and 1.98 m3 of water vapor at…

A:

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.