The atmospheric pressure is ___ kPa. The quality of water is ___ [-]. The internal energy of water is ___ kJ/kg. ### Piston-Cylinder Device AnalysisA piston–cylinder device contains 5 kg of water. The piston has a mass of 25 kg and a cross-sectional area of 0.1 m². A compressed spring above the piston exerts a force of 3.5 kN on the piston. Determine the atmospheric pressure in kPa if the pressure inside the cylinder is 147.5 kPa. Also, determine the quality and the internal energy of water. **NOTE:** The volume occupied by water is 2.948 m³.#### Diagram Description:The diagram illustrates a piston-cylinder device containing water:- **Piston:** The piston is located at the top of the water and is under the influence of a compressed spring and its own weight. The mass of the piston is 25 kg, and the spring exerts an additional force of 3.5 kN. - **Spring:** Above the piston, a spring is compressed, indicating it contributes additional downward force.- **Water:** Below the piston, there is water with a mass of 5 kg occupying a volume of 2.948 m³.- **Cross-sectional Area:** The area of the piston is 0.1 m².- **Arrow (Q):** Represents the heat interaction (Q) with the system, indicating energy input or output.Understanding the interactions in this system allows for calculations of atmospheric pressure, quality (state) of water, and its internal energy under the given conditions.

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A piston-cylinder device contains 5 kg water. The piston has a mass of 25 kg and a cross-sectional area of 0.1 m². A compressed spring above the piston exerts a force of 3.5 kN on the piston. Determine the atmospheric pressure in kPa if the pressure inside the cylinder is 147.5 kPa. Also, determine the quality and the internal energy of water. NOTE: The volume occupied by water is 2.948 m3.

A piston-cylinder device contains 5 kg water. The piston has a mass of 25 kg and a cross-sectional area of 0.1 m². A compressed spring above the piston exerts a force of 3.5 kN on the piston. Determine the atmospheric pressure in kPa if the pressure inside the cylinder is 147.5 kPa. Also, determine the quality and the internal energy of water. NOTE: The volume occupied by water is 2.948 m3.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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Concept explainers

Thermodynamic Relations

Thermodynamics is the division of physics that deals with the transfer of any kind of energy, whether it be heat, temperature, or work, from one object to another.

Question

The atmospheric pressure is ___ kPa.
The quality of water is ___ [-].
The internal energy of water is ___ kJ/kg.

### Piston-Cylinder Device Analysis

A piston–cylinder device contains 5 kg of water. The piston has a mass of 25 kg and a cross-sectional area of 0.1 m². A compressed spring above the piston exerts a force of 3.5 kN on the piston. Determine the atmospheric pressure in kPa if the pressure inside the cylinder is 147.5 kPa. Also, determine the quality and the internal energy of water. **NOTE:** The volume occupied by water is 2.948 m³.

#### Diagram Description:

The diagram illustrates a piston-cylinder device containing water:

- **Piston:** The piston is located at the top of the water and is under the influence of a compressed spring and its own weight. The mass of the piston is 25 kg, and the spring exerts an additional force of 3.5 kN.

- **Spring:** Above the piston, a spring is compressed, indicating it contributes additional downward force.

- **Water:** Below the piston, there is water with a mass of 5 kg occupying a volume of 2.948 m³.

- **Cross-sectional Area:** The area of the piston is 0.1 m².

- **Arrow (Q):** Represents the heat interaction (Q) with the system, indicating energy input or output.

Understanding the interactions in this system allows for calculations of atmospheric pressure, quality (state) of water, and its internal energy under the given conditions.

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