What makes a text cohesive?
Cohesion in texts includes the use of connectives and conjunctions and more sophisticated texts effectively use a variety of referring words, substitutions, word associations and text connectives to improve the flow of the writing.
What is responsible for cohesion?
Cohesion refers to the attraction of molecules for other molecules of the same kind, and water molecules have strong cohesive forces thanks to their ability to form hydrogen bonds with one another. Thus, the water molecules at the surface form stronger interactions with the neighbors they do have.
How does cohesion affect flow rate?
Cohesion is the force of attraction between the particles of a substance. Fluids with slow flow rates, such as maple syrup, have particles with greater cohesion. Less viscous fluids are thin and runny and have faster flow rates. Thicker fluids are more viscous and have slower flow rates.
What is flow rate in science?
To review, flowing fluids are characterized by a quantity called the flow rate, which is defined as the volume of fluid flowing through an area each second. In a pipe or other enclosed region, the flow rate can be expressed in terms of the fluid speed and the cross-sectional area of the pipe.
What is cohesion and surface tension?
Cohesion and Surface Tension The cohesive forces between molecules in a liquid are shared with all neighboring molecules. Surface tension could be defined as the property of the surface of a liquid that allows it to resist an external force, due to the cohesive nature of the water molecules.
How does surface tension break?
Detergent molecules’ two ends make it able to break through the surface tension of water. This weakens the hydrogen bonds holding the water molecules together at the surface. The result is a break in the surface tension of the water.
What is the relationship between water tension and cohesion?
The cohesive forces between liquid molecules are responsible for the phenomenon known as surface tension. The molecules at the surface do not have other like molecules on all sides of them and consequently they cohere more strongly to those directly associated with them on the surface.
How does temperature affect cohesion?
Answer: The cohesive forces between the water molecules will decrease. Thus, if the temperature of the system increases, water particles move apart because they gain kinetic energy. The forces binding water molecules together will weaken up and so, the cohesive forces between the water molecules will decrease.
What would happen if water didn’t have cohesion?
In order to drink or live in water it must attach and stay together so if water didn’t have this property cohesion wouldn’t help with the use of water. This is important for life because it dissolves other polar molecules such as sugars in water. Ionic compounds dissolve in water to form ions.