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
Evaluation of Specific Radiographs Intra oral peri apical radiographs, cephalograms, panoramic radiographs and Computed tomographies are necessary for complete survey of teeth

JOINTS - The structural arrangement of tissues which connect 2 or more bones together at their place of meeting is called a joint. Study of joint is arthrology. Joint make the

Categories of Secondary Inductions The secondary inductions are categorized into two types. 1) Instructive Interaction : In such type of an interaction the inducing tissue


Why are transgenics considered a threat to the environmental safety? Transgenics can be dangerous to the entire biosphere as the transfer of genes among species may have immed

Q. What is Osmotic diarrhoea? This kind of diarrhoea is caused by the presence of osmotically active substances in the intestinal tract, which in turn, favour the drawing of la

Q. What are the respective functions of the micronucleus and of the macronucleus in the paramecium? The macronucleus is properly the cell nucleus it has RNA and DNA and acts as

Hazardous Material - Factors Affecting Occupational Health Handling and storage of flammable and combustible liquids all the time pose threat to occupational safety. Fire and

What are the chemical substances formed by water photolysis? What is the destination of each of those substances? Free electrons, hydrogen ions and molecular oxygen are liberat

Q. Indications for Surgery of mitral regurgitation? Surgery is indicated in all symptomatic patients (class II and above) with severe mitral regurgitation and normal or decreas