Air is compressed into a 0.5m3 rigid tank until the pressure changes from 120 kPa vacuum pressure to gage pressure of 320 kPa. If the air can cool to 450C. What will be the initial temperature of the air

Q: -35%- The pressure in the automobile tire depends on the air in the tire. When the air temperature…

A: Given:T1=25°C =298 KPg1=210 kPaV=0.025 m3T2=50°C =323 KPatm=95 kPa

Q: A piston-cylinder device contains water of quality x-0.7 and pressure 200 kPa with an initial volume…

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Q: If the initial volume of the gas is compressed to one-half its original volume and the new…

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Q: For a constant volume process, pressure of an ideal gas becomes three times. Calculate the final…

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Q: A compressed liquid may be approximated as a saturated liquid

A: Any  fluid is considered as a  compressed fluid if it is at a temperature lower than the saturation…

Q: Consider an evacuated, insulated, rigid tank connected through a closed valve to a high-pressure…

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Q: Helium at 149 kPa abs and 10°Cis isentropically compressed to one-fourth of its original volume.…

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Q: The fixed volume container contains 7.5 kg air at 22ºC temperature and 140 kPa pressure. Air is…

A: Given data as per question Initial mass = 7.5 kg Initial temperature = 220 c =295 k Initial pressure…

Q: The vacuum in a condenser is found to be 71.12 cm of Hg (barometer 76 cm of Hg) and the temperature…

A: Here, From the steam table 1 kg of steam at 30oC will exert a pressure of 0.04242 bar and have a…

Q: Situation 4: Air at 20°C and 200 kP pressure (kPa) and temperature (" correct, otherwise still…

A: GivenT=20oC=20+273=293KP=200kPaV2=V129  process is isothermal 10 process is isentropic  with k=1.4

Q: A quantity of 0.44 moles of air enters a diesel engine at a pressure of 148 kPa and at a temperature…

A: Given Data The number of moles are: n=0.44 The Pressure at the entry is: P=148 kPa The temperature…

Q: A constant volume container holds 10 kg of air at a temperature of 20°C and a pressure of 150 kPa.…

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Q: An ideal gas expands at a constant total pressure of 3.0 atm from 460 mL to 660 mL. Heat then flows…

A: Given data: The initial pressure, P1=3 atm. The initial volume, V1=460 mL. The final volume, V2=660…

Q: Q1. In a piston-cylinder assembly attached with spring load is filled with 60 kg of water at…

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Q: 10 kg of R-134a fill a 1.3206 m^3 rigid container at an initial temperature of 24 C. The container…

A: 1. Given Data The mass of the R-134a is:m=10 kg The volume of the R134a is:V=1.3206 m3 The initial…

Q: Gauge pressure of air

A: Given; A football was inflated to a gauge pressure of ,pgauge=1 barAmbient temperature; Ta=150 CAir…

Q: A rigid tank contains air at a pressure of 70 psia and a temperature of 60F. By how much will the…

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Q: he piston/cylinder device contains 0.4kgof water at a temperature of 1800C and pressure of 0.8 MPa.…

A: Given:Mass of water, m=0.4 kgInitial temperature of water, T1=180°CInitial pressure of pressure,…

Q: The quality of water is 50% at 500 psia. Calculate the specific volume.

A: 1psia=6894.75Pa 500 psia = 3.44 Mpa Quality =50%=0.5 From the steam table  At 3.44 Mpa vf=0.001233…

Q: A sealed rigid vessel has a volume of 35 ft° and contains 2 Ibm of water at 200 F. The vessel is now…

A: We have given m1=2 lbm = 0.907185 Kg ; V1= 35 ft3= 0.99109 m3  ; T1=200 F =366.483 K ;…

Q: arly mountaineers boiled water to estimate their altitude. If they reach the top and find that water…

A: Given Data: The boiling point of water is T=84°C Refer steam table (TABLE A–4) to determine the…

Q: The air in a tank is pressurized to 640 mm Hg at a temperature of 23C. If the tank is pressurized to…

A: The problem is asking us to find the new temperature of the air in the tank when the pressure is…

Q: n a condenser, the vacuum is found to be 2 N/cm2. The barometer reads 735 mm of Hg, then its…

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Q: Nitrogen is contained in a 80L tank and the initial pressure and temperature is 250 kPa and 200 °C,…

A: Given data Volume of tank,V=80-L=0.08m3 Initial pressure,p=250kPa Temperature,T=200°C=473K Ideal Gas…

Q: . What is the temperature of the heated air at 170°C in K, °F and R?

A: Given:T=170°C

Q: QI/ the cylinder contains 0.2 kg of saturated water vapor at 1000 kPa. The stops location…

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Q: Determine the mass of air at a pressure of 215kPa and a temperature of 31°C in a 132-gallon…

A: Given: P = 215 kPa T = 31°C  V = 132-gallons

Q: Early mountaineers boiled water to estimate their altitude. If they reach the top and find that…

A: At h altitude water boil at 84 degree Celsius use table to find out the vapor pressure at 84 degree…

Q: USE NEWTON'S LAW OF COOLING dT/ dt =-k(T-Tm) If the temperature of the air is 300K and the…

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Q: For water with pressure of P=8MPa and secific volume v=0.023525 m3/kg, (5) Find the the…

A: Given data  Pressure = 8 Mpa Specific volume = 0.023525 m^3/kg Find the temperature .

Q: QI/ A container contains 4 kg of air at a pressure of 600 kPa and a temperature of 40 °C. The…

A: Given data: m=4 kgP1=600 kPaT1=40°CP2=250 kPaT2=15°C Need to determine the volume of each container.

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.