In a constant volume insulated sealed container, there is initially 0.7 kg helium at 27 ° C temperature and 350 kPa pressure. The helium in the container is mixed with a 0.015 kW rotary vane for half an hour. Finally; a) Find the temperature of the helium gas. b) Calculate the pressure.

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Q: A spring-loaded piston/cylinder assembly contains 1 kg of R-410a as saturated vapour at -20 ℃.…

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Q: 1) Carbon dioxide, as a gas, at 335 K is pumped at a very high pressure into an oil-well. If CO₂ has…

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Q: B. Water is contained in a rigid vessel of 5000 L at a quality of 0.85 and a pressure of 2.25 MPa.…

A: Given Data: Volume, V=5000 L Initial pressure, P1=2.25 MPa Initial quality, x1=0.85 Final pressure,…

Q: System. The initial Volume of air is o.15m? which is Let us air in having mass of o 18k9 at temp-1s&…

A: Given: Initial Volume V1=0.15m3mass (m)=0.18kgInitial temperature T1=15°C or 273+15=288KInitial…

Q: ive kg of water vapour are contained at 100 kPa and 85 percent quality in a suitable enclosure.…

A: Given:P=100 Kpax=0.85

Q: An oxygen tank has a volume of 4 cubic meters and is at 20 degrees C and 700 kPa. The valve is…

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Q: Q2) A piston cylinder includes air with a pressure of 600 Kpa, a temperature of 290 K, and a volume…

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Q: Helium in a steel tank is at 250 kPa, 300 K with a volume of 0.1 m^3. It is used to fill a balloon.…

A: Given data: Consider the diagram as shown below for the given process.

Q: A furnace heats water at a saturated state with a pressure of 1 bar. How much heat is given When the…

A: Giveninitial conditionwater at a saturated state with a pressure of P1=1 barfinal…

Q: Q2// The initial state of air is 120 KPa and 320 K with volume 0.11 m3 which is compressed…

A: An isothermal process is a process where the temperature is constant. An isobaric process is a…

Q: 3.) Find the pressure ,specific volume ,internal energy ,enthalpy ,entropy of saturated water at 300…

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Q: 2.0 .A large mining company was provided with a 3000 cm' compressed air tank. Air pressure drops…

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Q: Water vapor enters an adiabatic turbine at a pressure of 8 MPa, a temperature of 600 ℃ and a speed…

A: Given data:Inlet conditions:Inlet pressure (P1​) = 8 MPaInlet temperature (T1​) = 600°CInlet speed…

Q: 1.) A hand pump is used to inflate a bicycle tire to a gauge pressure of 70 psi. a) How much work…

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Q: Please provide complete solution and diagram for this problem.  A  2m3 air tank has an initial…

A: Initial condition of Air, V1=2 m3, P1=200 kPa =200*103 Pa, T1=45oC=45+273=318 KFinal mass of air,…

Q: For water at 100 kPa with a quality of 20%, find the volume fraction of vapor. Select one: a. 0.9915…

A: Question belongs to subject Engineering Thermodyanamics. Concepts of Properties of pure substances,…

Q: Q.4:A) A single-stage reciprocating compressor takes Ikg/min at 1bar, 288K and delivers it at 5bar…

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Q: Steam at 210 psia  and 386°F has an enthalphy of 1173 But per lb as determined by a throttling…

A: Given, P = 210 psia T = 386°F  h1 = 1173 Btu/lb x = ? v = ?

Q: A test cylinder with a constant volume of 2m3 contains saturated liquid water at the 100°C. It now…

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Q: Liquid ammonia at a temperature of 26 OC is available at the expansion valve . The temperature of…

A: given data: Liquid ammonia at a temperature of 26 OC is available at the expansion valve . The…

Q: Q1) A rigid tank of 1 m contains nitrogen gas at 600 kPa, 400 K. By mistake someone lets 0.5 kg flow…

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Q: The pressure of the air in a starting vessel is 40 bar and the temperature is 24 °C. If a fire in…

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Q: Q 1(c): Consider a case in which the air inside the pressurized cabin of a jet transport flying at…

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Q: air in an internal combustion engine has 227 degrees Celcius, 1000 kPa, with a volume of 0.1 cubic…

A: Hi, you have submitted multiple questions and it is not specified in which problem you need help.…

Q: 3. 5 kg air with initial temperature of 100°C expands at a constant pressure of 2 bar to reach to a…

A: Given data,  For air,  m= 5 kg  T1= 100°C = 373 K  Pressure is constant P= 2 bar = 200 KPa  V2= 5m³

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Q: cooling tower cools water from 39 °C to 24 °C at the rate of 25 kg/s. Air enters the tower at 18 °C…

A: Given Data Twi=39°C Two=24°C Tai=18°C Mw=25 kg/s Ma=35 kg/s

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.