Please give a detailed explanation, don't just give the existing solution.(Handwritten recommended) A piston-cylinder device, containing air at 255kPa, loses heat to the surroundingatmosphere at a rate of 0.65 kW. At a giveninstant, the piston, which has across-sectional area of 0.020 m2, movesdown with a velocity of 1 cm/s.Determine the rate of change of storedenergy in the gas?+

To determine the rate of change of stored energy in the gas within the piston-cylinder device, we…

Answered: A piston-cylinder device, containing…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Steam at a pressure of 11 bar and a temperature of 320C is containedin a large vessel. Connected to the vessel through a valve is a turbinefollowed by a small initially evacuated tank with a volume of 0.60 m3.When emergency power is required, the valve is opened and the tankfills with steam until the pressure is 11 bar. The temperature in the tankis then 400C. The filling process takes place adiabatically and kineticand potential energy effects are negligible. Determine the amount ofwork developed by the turbine in kJ.
A weighted piston (total masa of 17 kg)., resting on stops in a cylnder (radius of 0.05 m) divides a container into two regions. 0.075 kg of saturated liquid water at 50 Cis contained beneath the piston. The rest of the cylinder and container is evacuated. Heat is applied to the water until the piston is lifted off of the stops and moved a distance () of 0.6 m. As the piston reaches the mouth of the cylinder, the hermetic seal is broken and the cylinder contents can now expand to fil the remainder of the evacuated space. At this instant, no additional heat is added to or removed from the system. When the system fully equilibrates, its absolute pressure is measured to be 0.01 MPa vacuum y -E Cre 20 What is the state of the water when the piston begins to rise off of the stops? ? bị What is the water temperature when the piston reaches the mouth of the cylinder? c) What is the final volume of the water (after the seal is brokenj?
169 g of solid water (i.e. ice), at -17 °C, is placed into a sealed, insulated container with a volume of 0.29 m^3. A 1457 W heater is used to heat and change the phase of the sample until it is a gaseous water (i.e. steam). The heater runs for 433 s. What is the pressure, in kPa, of the gaseous water in the container at the end of the heating process? Round your answer to the first decimal place.
QUESTION 1 (a) The air inside a 0.2 m² piston-cylinder device initially at 600 kPa. After heated up for 5 minutes, the air pressure increases to 1200 kPa, while maintaining the same volume due to installation of stopper in the piston-cylinder. i. ii. iii. Calculate the boundary work experienced by this piston-cylinder device, kJ. Name the thermodynamics process. In the other case, if there is no stopper in the cylinder, the air inside the piston-cylinder device is allowed to expand to 0.35m' under isobaric condition of 600 kPa. Calculate the boundary work, kJ.
Can you explain why the total heat transfer and total work depends on only the difference between enthalpies. I do not understand how can we write general energy rate balances for control volumes.
HEAT AND MASS TRANSFER Material and Energy Balances Air is flowing steadily through a horizontal heated tube. The air enters at 40°F and at avelocity of 50 ft/s. It leaves the tube at 140°F and 75 ft/s. The average specific heat of airis 0.24 Btu/lb-°F. How many Btu’s per pound of air are transferred through the wall of the tube?
Mr Chua experimented on water movement within a rigid tank. The rigid tank isdivided into two equal parts by a partition. Initially, one side of the tank contains 5.0kg of water at 200 kPa and 25ºC, and the other side is empty. The partition is thenremoved, and the water expands into the entire tank. The water is allowed toexchange heat with its surroundings until the temperature in the tank returns to theinitial value of 25ºC. Determine:a) the volume of the tank.b) the final pressure of the tank.
A 10m³ rigid closed cylinder contains a gas with temperature of 100 deg.C and pressure of 300kPa. 50 Joules of heat is added to the system. Determine the change of internal energy of the gas in the system.
In a room unoccupied by people, a 2kW electric heater is turned on and kept on for 15 minutes. The enclosure is at atmospheric pressure of 100 kPa, has dimensions of 3 x 5 x 10 meters, and loses heat through its walls at a rate of 1000 kJ per hour. Calculate what temperature the air will reach after 15 minutes. solve it correctly please. I
i need the answer quickly
* A vertical piston-cylinder device contains water and is being heated on top of a range. During the process, 65 Btu of heat is transferred to the water, and heat losses from the side walls amount to 8 Btu. The piston rises as a result of evaporation, and 5 Btu of work is done by the vapor. Determine the change in the .energy of the water for this process 61 Btu O 52 Btu O 60 Btu O 55 Btu O
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A piston-cylinder device, containing air at 255 kPa, loses heat to the surrounding atmosphere at a rate of 0.65 kW. At a given instant, the piston, which has a cross-sectional area of 0.020 m2, moves down with a velocity of 1 cm/s. Determine the rate of change of stored energy in the gas? +