The pressure in an automobile tire depends on the temperature of the air in the tire. When the air temperature is 25°C, the pressure gage reads 210 kPa. If the volume of the tire is 0.025 m3, determine the pressure rise in the tire when the air temperature in the tire rises to 50°C. Also, determine the amount of air that must be bled off to restore pressure to its original value at this temperature. Assume the atmospheric pressure to be 100 kPa.

Q: A system including a movable part, a piston, undergoes two stages. In the first stage, the system is…

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Q: A pressure gage connected to a tank reads 500 kPa at a location where the atmospheric pressure is 94…

A: The gage pressure reading, Pgage=500 kPaAtmospheric pressure, Patm=94 kPa

Q: In a capillary tube water with enthalpy equal to 1,983 kJ/kg is throttled to a pressure of 900 kPa.…

A: Given: Initial enthalpy h1=1983kJ/kgHeat loss (Q)=62kJ/kgExit pressure P2=900kPa Assumption:…

Q: Determine the pressure in a 1 m³ vessel containing 1.9135 kg of superheated steam at 300 °C.

A: given data volume = 1 m^3 mass = 1.9135 kg temperature = 300°C find the pressure of superheated…

Q: 6400 ounces of nitrogen at 25°C and 20 m3 volume . Some of the nitrogen is allowed to escape, until…

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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: A gas is contained in a vertical, frictionless piston– cylinder device. The piston has a mass of…

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Q: The barometer of a mountain hiker reads 750 mbars at the beginning of a hiking trip and 650 mbars at…

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Q: Two tanks are linked together by a pipe and a tap farm. The temperature of the gases they contain is…

A: Given: To find: Equilibrium pressure after opening valve

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: The air in an automobile tire with a volume of 2.60 ft^3 is at 90 degF and 20 psig. Determine the…

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Q: A closed vessel contains air at a pressure of 160kPag and temperature of 30°C. The air is heated at…

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Q: Nitrogen in the amount of 2 kg fills a 0.05 m3 piston-cylinder device at 500 kPa. The piston is now…

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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: A piece of copper is initially surrounded with a pressure of (1.1x10^5) Pa. It is then placed in a…

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Q: Initially, a gas is subjected to standard atmospheric pressure with a temperature reading of 289K…

A: Given: The temperature reading initially, T1 = 289 K The volume of gas initially, V1 = 2830…

Q: A pressure gage connected to a tank reads 500 kPa at a location where the atmospheric pressure is 94…

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Q: 1 m 2.5 m

A: Calculated combined weight of container and water.

Q: The figure shows two different spaces filled with outside air 25mmHg and the scale A reads 200kpa…

A: Write the given data with suitable variables. P=200kPa=200000 Pa1000 Pa1 kPah=25 mm of Hg

Q: The barometer of a mountain hiker reads 854 mbars at the beginning of a hiking trip and 665 mbars at…

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Q: A tire having a volume of 3 ft3 contains air at a gage pressure of 26 psi and a temperature of 70°F.…

A: Given data: V=3 ft3Pg=26 psiT=70°F=530°RR=1.716×103 ft·lb/slug·°R Need to determine the density of…

Q: A storage tank contains 29 kg of nitrogen (N2) at an absolute pressure of 111 kPa and a temperature…

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Q: pressure is 20.45 psi and the temperature is 77°F in a closed chamber with dimensions 30.8 ft x 15.3…

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Q: A piston-cylinder contains 2.1 kg of air at T1 = 800 K and P1 = 848 kPa. The air is brought to a…

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Q: Determine the volume of 3 kg of saturated water with a quality of 60% and a pressure of 150 kPa.

A: Answer: The volume of 3 kg of saturated water with a quality of 60% and a pressure of 150 kPa is…

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: Consider water which has a pressure of 200 kPa, and a temperature of 250°C. Determine its specific…

A: Givenwater P=200kPaT=250oC

Q: he instrument reads a height equivalent to 0.95 atm. The air is compressed adiabatically to 87,000…

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Q: The gage pressure in a liquid at a depth of 3 m is read to be 42 kPa. Determine the gage pressure in…

A: Given: The gage pressure at the initial depth is P1=42 kPa. The initial depth of the liquid is H1=3…

Q: The piston/cylinder device contains 0.5 kg of water at a temperature of 200 0C and pressure of 0.8…

A: The turbo generator is a device used to generate mechanical energy using heat in the form of fluid.…

Q: The density of oxygen contained in a tank is 2.0 kg/m3 when the temperature is 25°C. Determine the…

A: Givenρ=2 kg/m3T=25oC=25+273=298 kPatm=97 kPaR=2.598×102 J/kgK  =0.2598 kJ/kgK

Q: Air is compressed into a 0.5m3 rigid tank until the pressure changes from 120 kPa vacuum pressure to…

A: Given                    Volume, V = 0.5 m3       Initial pressure, P1 = 120 kPa        Final…

Q: The cylinder with a volume of 0.1 m ^ 3 contains oxygen with a manometric pressure of 6 MPa and a…

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Q: Determine the mass of in lbm, when the pressure is 24.54 psi and the temperature is 82.7 °F in a…

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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.