In a vertical piston cylinder arrangement, there is 300 kPa pressure and 2 kg of saturated liquid and saturated steam mixture water at 70% dryness in the cylinder. As a result of the heat transfer to the cylinder, the piston moves by increasing slowly at constant pressure and the heat transfer ends when the volume increases 2.5 times. a)Find the temperatures, specific volumes and specific internal energies in the initial and final states. b)Draw the P-v diagram of the process schematically, show the initial and final states on the diagram. c)Find the work done to the environment by the system during the process, kj d)Find the heat transfer, kj, to the system during the process.

Q: A 10 kg mass of superheated R-134a at 1.88 MPa and 70°C is cooled at constant pressure until it…

A: Givensuperheated R-134a m=10kgP1=1.88MPaT1=70oCcooled at constant pressure ie. P2=P1=1.88MPa…

Q: In a closed container with a fixed volume of 0.5 m3, initially there is a pressure of 200 kPa and a…

A:

Q: Water at 150 kPa and 4 kg of saturated liquid vapor mixture is in a piston-cylinder assembly. 3 kg…

A: Steam in general can exits different phases as subcooled liquid, saturated liquid, saturated wet…

Q: イn To Room temperature T = 293 K V. The gas volume changes from Vp to Va at constant temperature T.…

A: As the temperature is constant during the process , The process is isothermal . Internal energy is…

Q: Find the heat absorbed to evaporate 5Lb of R134a from Point 1 to point 2 as shown in P-H diagram.

A: Given: Refrigerant 134a m = 5 lb   To find: Heat absorbed to evaporate, Q = ?

Q: Can you help me to solve this problem? Please also explain if this is an isothermal or adiabatic…

A: Initial Conditions Given:1. Vessel 1: P1​=20 bar,V1​=20 m3,T1​=300∘C2. Vessel 2: P2​=1 bar,V2​=40…

Q: In this problem, you will consider an "unusual” solid-state refrigeration device that achieves…

A: Given: To find: Sketch the process on the following state diagrams

Q: A piston-cylinder contains nitrogen initially at 100 kPa, 20°C, and a volume of 0.283 m³ (State 1).…

A:

Q: Water is heated in a closed container with rigid walls that is a perfect cube (1 m x 1mx n). The…

A:

Q: A piston-cylinder assembly with a linear spring acting on the piston as shown below contains the…

A: as per guideline i have to solve only three subpart of your question

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: Ms Png works on a piston-cylinder system which contains 0.05 m3 of nitrogen gas initially at 200…

A:

Q: A rigid, closed container with a volume of 0.5 m3 is heated with an electric hot plate. The vessel…

A: The given information in the problem is listed in the following attached image:

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.