A 2 m3 rigid tank filled with water is initially at 400 kPa and temperature of 300oC . The water is cooled until the pressure reaches 150 kPa. Determine i. total mass of water in the tank, kg and ii. change in internal energy, kJ Show the states and process on a pressure versus specific volume ( P-v) diagram, with respect to saturation lines.

Q: A piston-cylinder assembly contains 0.1 kg of air at 300 kPa pressure and 270C temperature. First at…

A:

Q: Saturated water vapor at (T1,P1) is condensed to a saturated liquid at (T2,P2) in a spring-loaded…

A: State 1: T1,P1State 2: T2,P2T1>T2

Q: isider a cylinder-piston configuration containing T0kg of water at 4MPa and The system undergoes a…

A:

Q: Hydrogen gas at 65 kPa, 200 °C is heated in a closed, rigid vessel until it reaches to 400 °C.…

A:

Q: Saturated water vapor at 280 F has its pressure decreased to increase the volume by 30% keeping the…

A: Given that, Temperture of saturated water vapor, Tsat=280 °Fv2=1.3 v1 From the steam table, At T=280…

Q: A substance initially at 290kPa, 8 m³ is expanded to 37 m³ at in a process where PVn=const., n =…

A:

Q: Determine tnejchange in the internal energy of hellum, in kJ/kg, as it undergoes a change of state…

A: given data: for state 1stP1=100kpa     T1=20+273=293Kfor state 2P2=600KPaT2=300+273=573K p(v-a)=RT…

Q: Air is initially at 50 °C (dry-bulb temperature). Its specific volume is 0.95 m³/kg dr air. It is…

A:

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

A: Given data:- m=1kg, P1=500kPa, T1=150K, V1=0.1 m3 T2=900K ,V2=0.3 m3 Heat transfer inside the system…

Q: n a piston-cylinder arrangement, an initial temperature of 250 °C and 1.4 MPa pressure contains 4 kg…

A: The initial temperature is 250°C The pressure is 1.4 MPa The mass of vapor is mv=4 kg The final mass…

Q: a- What is the final pressure and the specific work done during the process? b- Draw the process on…

A: Temperature is given as 200 oC. Quality is given as 50 %. Water contracts isothermally to half of…

Q: A rigid container contains saturated vapour at 1.6 bar.  The container is cooled by -440 KJ and the…

A: GivenP1=1.6barQ=-440kJP2=1bar

Q: A cylinder fitted with a piston has a volume of 0.1 m'and contains a 0.8 kg of steam at 0.4 MPa.…

A: We are suppose to solve only 3 subparts. Please post other parts as a separate question.

Q: What is the internal energy, u, in kJ/kg of refrigerant R22 at temperature T=-10°C. and specific…

A:

Q: A structural member in a nuclear reactor is made of rail A a zirconium alloy. Er = 100 GPa. oy = 300…

A: Given Applied load = 14 kN FOS = 3 Length = 1.4 m Elongation = 0.4 mm Young modulus = 100 GPa Yield…

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.