Five kilograms of water, initially a saturated vapor at 100 kPa, are cooled to saturated liquid while the pressure is maintained constant. Determine the work and heat transfer for the process, each in kJ. Show that the heat transfer equals the change in enthalpy of the water in this case.

Q: A cylinder fitted with a piston has a volume of 0.4 m2 and contains 1.0 kg of steam at 0.4 MPa. Heat…

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: water contained in a closed, rigid tank, initially saturated vapor at 280 Celsius, is cooled to 100…

A: Given data:- Rigid tank means constant volume, initially saturated vapor at 280 °C and final…

Q: A mass of air (molecular mass equal to 28.97 g/mol) at 150 kPa and 27 ‰is contained in a…

A: In the question , it is given that the gas is having a pressure of 150kpa, now first the gas will…

Q: 0.3 kg of carbon dioxide is contained in a cylinder with a piston. Initial conditions are 200 kPa…

A: Given data  mass of carbon di oxide (m) = 0.3 kg  Initial pressure (P1) = 200 kPa Initial…

Q: In what state will water be if the pressure and internal energy are 750 kPa and 1000 kJ/kg,…

A:

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℃.

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.