An ideal gas at a pressure of 4120 kPaa and a temperature of 25 oC is contained in a cylinder with a volume of 20 m3. A certain amount of the gas is released so that the pressure in the cylinder drops to 1730 kPaa. Expansion of the gas is isentropic. The heat capacity ratio is 1.4 and the gas constant is 0.286 kJ/kgoC. Determine the mass of gas remaining in the cylinder, in kg.

Q: For a certain ideal gas of 1.8 kg-mass with R = 0.272 kJ/kg-K and k= 1.235, calculate the change in…

A:

Q: A piston-cylinder assembly with a mass of 85 kg and a cross-sectional area of ​​​​0.05 m2, which can…

A:

Q: 41.394 kg per second of water at 0.03398675 kbarg and internal energy of 15000 kW is heated at…

A:

Q: A vessel with a volume of 1.66 m3 contains saturated liquid and saturated vapor at 600 kPa. The…

A: Given  Total volume (V) = 1.66 m3  Pressure (P) = 600 kPa  Mass of liquid (mL) =1.24 kg

Q: 29.706 kg per second of water at 0.03398675 kbarg and internal energy of 15000 kW is heated at…

A:

Q: A sealed container of 1.9 m3 volume contains 177 kg of water in the saturated liquid-vapour state at…

A: Given: Mass of water (m)=177kgVolume of water (V)=1.9m3Tsat=275°C

Q: A tank whose volume is unknown is divided into two parts by a partition. (Figure 1) One side…

A:

Q: ngerar me of the tank is 1.8 m and heat is transferred until the refrigerant is saturated vapor at…

A:

Q: A 4.625-kg steam-water mixture at 1.0 MPa is contained in an inflexible tank. Heat is added until…

A:

Q: A rigid vessel contains 4.45lb,m of steam at 6.25 MPa and 350°K. Determine its enthalpy in kJ using…

A: Given data,  m = 4.45 lbm =2.018486 kg  P= 6.25 MPa =62.5 bar  T= 350K = 77°C

Q: A 2.43 kg of air at 23.65 C underwent a polytropic process (n = 1.5) wherein its initial pressure of…

A: The final temperature of the system can be determined as,

Q: Determine the change in enthalpy of Hydrogen gas between 27° C and 407° C in kJ/kg using properties…

A:

Q: At 800 kpa pressure, the specific gravity 0.07N / liter liquid-vapor mixture

A: Given that, Mass of liquid, m=0.8 kg,Pressure of the mixture, P=800 kPa,Specific gravity of mixture,…

Q: 10 lbm of ammonia (MW = 17), is heated inside a cylinder equipped with a piston. The initial…

A: m=10 lbm=4.53592 kgP1=63 psi=4.3437 barT1=50°F=283.15 KT2=100°F=310.928 K…

Q: 25.995 kg per second of water at 0.03398675 kbarg and internal energy of 15000 kW is heated at…

A: Given that: Mass flow rate of the water = 25.995 kg/s Pressure = 0.03398675 kbarg = 35 bar Internal…

Q: A 2 kg of air at 20.2 C underwent a polytropic process (n = 1.5) wherein its initial pressure of…

A:

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 tank, having a volume of 5 m3, is filled with N2 and 2 kg of CO2 at a pressure and temperature of…

A:

Q: The specifilc hea carbon dioxide with temperatur chown in th o o

A: given:cp=1.54-345.1T+41300T2T1=325kT2=1100K

Q: Saturated Refrigerant-134a vapor Saturated liquid A tank occupied by saturated liquid-vapor mixture…

A:

Q: A 2.75 kg of air at 28.82 C underwent a polytropic process (n = 1.5) wherein its initial pressure of…

A:

Q: A quantity of gas has a pressure of 3.5 bar when the volume and the temperature are 0.03m³ and 35°C…

A:

Q: A rigid tank whose volume is unknown is divided into two parts by a partition. One side of the tank…

A: Given:The initial temperature of the ideal gas is T1=917°C.The initial pressure of the ideal gas is…

Q: A 2.712-kg steam-water mixture at 1.0 MPa is contained in an inflexible tank. Heat is added until…

A:

Q: . A well-insulated piston-cylinder device contains 5 L of saturated water at a constant pressure of…

A: GivenV=5L=5×10-3 m3P=150KPaPw=500WI=8At=38minx=0.50

Q: A diving air tank bottle with volume 11.37lt contains 2.4kgr of N2 and 0.6 kgr of 02. Calculate the…

A:

Q: Required information A piston-cylinder device contains 0.66 kg of steam at 300°C and 0.5 MPa. Steam…

A: Write the given values with the suitable variables.Here, m, T, and P are the mass, temperature, and…

Q: Determine the internal energy in kJ/kg of saturated steam at 7 MPa and 285.88°C and quality of 0.81.

A: Given DAta  Saturation Pressure, Psat=7MPa Saturation temperature, Tsat=285.88C Quality, x=0.81

Q: A 3.586-kg steam-water mixture at 1.0 MPa is contained in an inflexible tank. Heat is added until…

A:

Q: In a closed (fixed-mass) system, an ideal gas undergoes a process from 75 psia and 5 ft to 25 psia…

A: giveninitial Pressure P1=75psiainitial volume V1=5ft3final  Pressure P2=25psiafinal  volume…

Q: A metal tank contains air at 20 C and 400 kPa. The tank volume is 5 m³. It is connected through a…

A: given; →tank 1st;→temperature(T1)=200c=293K→pressure(P1)=400KPa→volume(V1)=5m3→for tank 2;→mass of…

Q: Carbon dioxide is contained in a piston-cylinder arrangement. It is initially at 6 bars and 380K. It…

A: P1= 6 barT1= 380 KT2= 298 KvP1.2= C

Q: A rigid, closed container contains water vapor. It is heated from a saturated liquid state at 200°C…

A:

Q: 27.745 kg per second of water at 0.03398675 kbarg and internal energy of 15000 kW is heated at…

A:

Q: piston-cylinder arrangement contains 0.78-kg nitrogen and receives 10.791 of heat isothermally. The…

A: Handwriting.jpg

Q: A rigid tank whose volume is unknown is divided into two parts by a partition. One side of the tank…

A:

Q: 35.269 kg per second of water at 0.03398675 kbarg and internal energy of 15000 kW is heated at…

A: Given that, Mass flow rate of water, m˙=35.269 kg/sec,Presssure of water, P=0.03398675 kbar=33.98675…

Q: (5) An insulated piston-cylinder device contains 15 L of saturated liquid water at a constant…

A:

Q: A rigid container contains 0.29 kg of hot saturated vapour at an unknown initial pressure P1.  The…

A:

Q: shown in the figure, a tank fitted with an electrical resistor of negligible er a period of 10…

A: Given data as per questionNitrogenm=2 kg, T1=27°CP1=0.1 MPaTime, t=10 minPower, P=0.35 kWHeat…

Q: A 2.170-kg steam-water mixture at 1.0 MPa is contained in an inflexible tank. Heat is added until…

A:

Q: A solid container with a volume of 150 L at an initial pressure of 2MPa was filled with a kilogram…

A:

Q: A 4.16-ft container is filled with 2.22-lbm of oxygen at a pressure of 84.17 psia. What is the…

A:

Q: The storage tank of the steam system contains 0.005 kg of steam at a pressure of 50 bar and 500°C.…

A: To find: The dryness fraction, the temperature of steam after cooling, the specific internal energy…

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.