In compressible flow is the density doesnot change when pressure changes , Compressible is varies the density whennpreessur changes

Water is an incompressible liquid

Introduction:
Water is a commonly found substance on Earth and is known for its unique properties. One of the key characteristics of water is its incompressibility. In this explanation, we will discuss why water is considered an incompressible liquid.

Definition of incompressible:
An incompressible substance is a material that cannot be easily compressed or reduced in volume under the application of external pressure. In other words, the density and volume of an incompressible substance remain relatively constant even when pressure is applied.

Explanation:
Water molecules are held together by strong hydrogen bonds. These bonds create cohesive forces that resist changes in volume when pressure is applied. As a result, water is considered an incompressible liquid.

Properties of water:
1. Strong intermolecular forces: The hydrogen bonds between water molecules are responsible for its unique properties, including its incompressibility. These bonds create a strong attraction between molecules, preventing them from being easily compressed.

2. High density: Water has a relatively high density compared to other liquids. This density is a result of the close packing of water molecules due to hydrogen bonding. The high density also contributes to water's incompressibility.

3. Low compressibility: Due to the strong cohesive forces between water molecules, it is difficult to compress water. When pressure is applied to water, the molecules are forced closer together, but the hydrogen bonds prevent significant changes in volume.

Applications:
The incompressibility of water has practical applications in various fields, including:

1. Hydraulic systems: Water is commonly used as a working fluid in hydraulic systems due to its incompressibility. This property allows hydraulic systems to transmit force and energy effectively.

2. Diving: The incompressibility of water is crucial for scuba divers. As they descend into the water, the pressure increases, but water's incompressibility ensures that the volume of their diving suits or equipment remains relatively constant.

Conclusion:
Water is an incompressible liquid due to the strong intermolecular forces created by hydrogen bonding. These forces prevent significant changes in volume when pressure is applied. Understanding the incompressibility of water is important in various engineering and scientific applications.