A piston-cylinder device contains 2.25 kg of liquid water at 20oC and 300 kPa, at this state, a linear spring is touching the piston but exerts no force on it. Heat is now slowly transferred to the cylinder, causing the pressure and the volume to rise to 2.25 MPa and 0.1125 m3, respectively. 1) What is the final temperature (oC)? 2) What is the work on the process (kJ)?

Q: 1) A piston-cylinder device initially contains 1.0 kg of water at 30 °C and 2 MPa. The water is…

A:

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

A:

Q: A gas is compressed from an initial volume of 5.75 LL to a final volume of 1.24 LL by an external…

A:

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: A frictionless piston-cylinder assembly initially contains B m3 of air at A kPa pressure. In this…

A:

Q: Required information A gas is compressed from an initial volume of 0.42 m³ to a final volume of 0.12…

A:

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…

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.