An isolated piston-cylinder device contains 5 L of saturated liquid water at a constant pressure of 175 kPa. The water is stirred with a paddle wheel while a current of 8 A flows for 45 minutes through a resistor placed in the water. If the Half of the liquid evaporates during this process at constant pressure and the work done by the paddlewheel is equal to 400 kJ, determine the voltage of the source. Also, show the process on a P-v diagram with respect to the saturation lines.

Q: 2 A dividing wall divides an insulated container into two compartments as shown in the figure.…

A: please refer handwritten solution

Q: A frictionless piston-cylinder device contains 3L of saturated liquid water at a pressure of 200…

A: Given:V=3 LP=200 KPat=22 min i=7.5 AV=160 V

Q: Determine the rate of change of V when P changes at regular intervals of 10 N/mm2 from 60 to 100N/m2…

A:

Q: A piston-cylinder device initially contains 0.4 m^3 of saturated water vapor at a pressure of 200…

A: vapor pressure = 200kPa loss pf heat = 10kJ PRESSURE RISES TO = 300KPA

Q: Initially, a rigid tank contains 500L of water at 300°C. By volume, the tank contains60% liquid and…

A:

Q: As shown in the figure, a piston-cylinder assembly with a stopper contains R-410A, a refrigerant at…

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Q: 3. A room is to be heated by 1000 kg of a liquid contained in a tank placed in the room. The room is…

A: The mass of the liquid is m=1000 kg The final temperature of the liquid is Tf=25°C=298 K The heat…

Q: Calculate the boundary work done by the system during this process

A:

Q: Steam at a pressure of 2MPa and with a temperature of 2000 expanded to a pressure of 0.4MPa, the law…

A: Given that:Steam at pressure = 2 MP aTemperature = 250o CExpended to pressure = 0.4 MP aLaw of…

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: A rigid tank initially contains 4 kg of saturated liquid R-134a at 24C. A valve in the bottom of the…

A:

Q: A refrigeration system uses R 12 as the refrigerant. The system is evacuated, then charged with…

A:

Q: An insulated piston-cylinder device contains 4 L of saturated liquid water at a constant pressure of…

A:

Q: Two Insulated cylinders A and B with volumes VA 1.2 m³ and VB 6.4 m³ contain chlorine gas at…

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Q: Figure demonstrates a rigid, insulated tank that is divided into two parts by an interior partition.…

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Q: A piston-cylinder device contains 25 g of saturated water vapor that is maintained at a constant…

A: Thermodynamics : It is a branch of science which deals with work , heat , energy. According to the…

Q: Water is boiled at sea level in a coffeemaker equipped with an immersion-type electric heating…

A: To find out the power rating of the electric heater Power = m.hevap…

Q: Determine the work done by the expanding gas using the trapezoidal rule

A: Given:To find:work done by the expanding gas using the trapezoidal rule.

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.