An elastic balloon behaves such that pressure is proportional to diameter and the balloon contains 0.5 kg air at 200 kPa and 300 The balloon is momentarily connected to an air line at 500 kPa and 1000C. Air is let in until the volume doubles, during which process there is a heat transfer of 50 kJ out of the balloon. Find the final temperature and the mass of air that enters the balloon.

Q: 0.02 kg / s entering a radial flow compressor at 100 kPa and 280 K air is compressed to a pressure…

A: Given:Power required, P=2.732 kWmass flow rate of sir, m˙=0.02 kg/sP1=100 kPaT1=280 KP2=600…

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Q: A piston-cylinder assembly initially contains 100 kPa pressure and 2 liters of air at 25°C. Then the…

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Q: A 5-m tank is filled with steam and kept at a constant T = 250 °C. The initial pressure is 2000 kPa.…

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Q: 1 kg of ice from a freezer at -10◦C is placed in a bucket in the garden where the temperature is…

A: Question- 1 kg of ice from a freezer at -10◦C is placed in a bucket in the garden where the…

Q: (a) An elastic balloon behaves such that pressure is proportional to diameter and the balloon…

A: The pressure is proportional to the diameter of the balloon. Mass of the air is 0.5 kg.  The initial…

Q: An insulated evacuated tank having a volume of 50 ft3 is attached to a constant pressure line…

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Q: Air is compressed steadily by a compressor from 100 kPa and 27°C to 800 kPa and 290°C. The mass flow…

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Q: An elastic balloon behaves such that pressure is proportional to diameter and the balloon contains…

A: Given Data As we know that pressure is proportional to the diameter of the balloon. Mass of the…

Q: An Ideal gas is being heated in a circular duct as while flowing over an electric heater of 130 kW.…

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Q: A 3-m3 rigid tank contains nitrogen gas at 500 kPa and 300 K. Now heat is transferred to the…

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Q: 1 kg of AIR at P = 100 kPa is contained in a RIGID TANK made of IRON of mass 0.5 kg. Initially, the…

A: Solution:

Q: Air is compressed steadily by a compressor from 100 kPa and 27oC to 800 kPa and 290oC. The mass flow…

A: We are suppose to solve only 3 subparts as per guidelines. Please post other subparts as a separate…

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Q: A rigid 1-ft3 vessel contains R-134a originally at –20°F and 27.7 percent quality. The refrigerant…

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Q: Steam enters an adiabatic turbine at 3000C and 400.0 kPa. Heat is transferred until the pressure…

A: State 1: T1= 300∘C P1= 400 kPa State 2: P2= 100 kPa

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Q: A piston with water vapor at a pressure of 300 kPa and a temperature of 175 oC. 20 kg of fluid is…

A: Given data: Mass of water in the piston-cylinder device, m=20 kg. It is initially at, P1=300 kPa ,…

Q: (5) Helium gas is compressed by a compressor from 105 kPa and 18°C to 0.43 MPa and 160°C. The helium…

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Q: What is the final temperature of the system? Write and simplify the energy balance for process.…

A: For solution refer below images.

Q: Q2- Consider two ways to compress 2 kg/s of air (an ideal gas with R = 0.287 kJ/kg-K and constant…

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Q: Air is compressed steadily by a compressor from 100 kPa and 27°C to 800 kPa and 290°C. The mass flow…

A: We are suppose to solve 3 subparts only. Please post other parts as separate question.

Q: Q3: A nozzle is a device for increasing the velocity of a steadily flowing stream of fluid. At the…

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Q: A compressor draws in 0.5 kgm/s of air with 7 m/s speed, 100 kPa pressure, and 0.95 m3/kgm. The air…

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Q: 3. Assume 5 kg of steam initially at 8 MPa and 100% quality temperature. If during the non-flow…

A: Given m=5kg P=8MPa x=100%

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.