When air expands adiabatically (without gaining or losing heat), it's pressure P and volume V are related by the equation PV^1.4=C where C is a constant. Suppose that at a certain instant the volume is 510 cubic centimeters and the pressure is 87 kPa and is decreasing at a rate of 12 kPa/minute. At what rate in cubic centimeters per minute is the volume increasing at this time?

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Q: A monatomic ideal gas initially fills a V0 = 0.45 m3 container at P0 = 85 kPa. The gas undergoes an…

A: Given, Initial volume, V1=0.45 m3 Final volume, V2=1.4 m3 Initial pressure, P1=85 kPa=85000 Pa

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Q: Steam enters a turbine at T1=500 oC, P1= 10 MPa. The steam expands in the turbine to a pressure to…

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Q: One pound of air with an initial temperature of 200F is allowed to expand without flow between…

A: mass, m=1 lb or 0.453 kgT1=200o F or 366.48 KP1=90 Psi or 620528 PaP2=15 Psi or 103421 Pan=1 ,…

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Q: Piston Air

A: As per honor code and answering guidelines I can answer 1st 3 subparts at a time.If you want other…

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Q: If 37 kJ of heat is applied to a non-flow system while 54 kJ of work is done by the system,…

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Q: 40 m3 of air (R=0.287), at a gage pressure of 20kPa, and a temperature of 27 °C. then the specific…

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Q: Air undergoes an isochoric process from T1 = 300°C to T2 = 250°C as an ideal gas in a closed system.…

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Q: Refrigerant 134a expands in a piston-cylinder assembly from p₁ = 140 lb/in² and T₁ = 140°F to p₂ =…

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Q: In a horizontal tube, its initial section is A1 = 800 cm2 , which reduces to A2 = 600 cm2 at the end…

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Q: Oxygen (molar mass 32 kg/kmol ) expands reversibly in a cylinder behind a piston at a constant…

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Q: one pound of air with an initial temperature pf 200F is allowed to expand without flow between…

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Q: Inside a 150 m3 room is a 30 m3 inflated balloon. The room temperature is 28oC and the initial…

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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.