Density of water in relation to temperature, Biology

Density of Water in Relation to Temperature

On cooling, water molecules come closer which makes water dense. It is most dense at 4°C (Figure shown below) but it is still a liquid and water molecules move freely. However, when temperature drops below 4°C the movement of water molecules ceases and the bonds between molecules become relatively less rigid and more open, this traps the air molecules in pockets fonned between water moieties which make the ice lighter than water. It is for this reason that ice floats above the liquid water. Water always freezes in a top down manner. Formation of an ice sheet on the surface of a water body acts as an insulator and prevents freezing of the water below. This is important for the survival of aquatic organisms in areas where surface i water freezes during the winter period.

1571_water density.jpg

Posted Date: 12/10/2012 11:59:06 PM | Location : United States







Related Discussions:- Density of water in relation to temperature, Assignment Help, Ask Question on Density of water in relation to temperature, Get Answer, Expert's Help, Density of water in relation to temperature Discussions

Write discussion on Density of water in relation to temperature
Your posts are moderated
Related Questions
#quesWhat benefits can commensalism offer to a species..

Q. Corelation of ST Depressoin with Coronary Angiography? Various investigators considered 1 mm of horizontal or downsloping ST depression to denote a positive test and used fr

Alzheimer's  disease -  a  devastating  brain  disease  which  gradually  ruins  the  ,  thinking  skills,  patient's  memory and  ultimately  the  ability  to  perform  the  simpl

Explain about the Pasteurization? You must be aware of the various pasteurized products available in the market. The most commonly used product being ‘milk'. Why do we need to

Clone (verb) is the action of duplicating the genetic material within a vector. To clone the piece of DNA, one would insert it into some type of the vector (like, a plasmid) and p

Why does DNA twist? If it did not twist, would you expect it to fit into the miniscule cell? As we all know, if we join all of the DNA molecules from a person's body end to en

Aid-giving behaviour between genetically related individuals in animal groups is often observed in nature. This aid-giving behaviour can evolve when the advantages of helping relat

Explain transports of substances or materials in the membrane by the help of Lipid-anchored proteins with examles

All the water used in the home that goes into the drain or into sewage collection system is called waste water. Domestic sewage is the waste water from kitchens, bathrooms etc. It

What are plant root hairs? Where can they found and what is their function? The Root hairs that are external elongated projections of the root epidermis and their role is to in