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
Benefit of the new brain imaging technology Benefit from the new brain imaging technology, notably the CT scan, and the application of high speed computer technologies, permitt

A healthy person is on a diet that consists of very small amounts of water. A. This person will have high water permeability across the luminal membranes of the medullary colle

Meroblastic or partial cleavage The egg does not divide totally because divisions are restricted to only a part of the egg where as the rest of the egg remains completely uncl

Better coal should have following characteristics (1)   It should have high calorific value. (2)   It should have low moisture content. (3)   It should have low ash  conte

Helobial Type - Endosperm This type of endosperm is intermediate between the nuclear and the cellular types. The division of the primary endosperm nucleus is followed by the f

Q. Explain Barrier techniques - Protective clothing? Protective outerwear is worn to reduce exposure to debris in spatter. Clinic jackets should have long sleeves, a high neck,

Why Pregnancy and lactation are critical stages in lifecycle? You must be aware that the situation of women is far from optimal and it is necessary to give attention to their n

Rapport-Building Here the Counsellor tries to establish a rapport and gain the client's trust. Let us see how we make friend? When we meet someone we take time to react, we ob

Black quarter Synonym: BlacklegBlack-quarter (BQ) is an acute infection but a non-contagious disease characterized by inflammation of skeletal and cardiac muscles, severe toxae

Polymorphism in Lysosomes Polymorphism, i.e. existence of a structure in more than one form, is an important feature of lysosomes. Several different forms of lysosomes have been