water project
The Physical properties of water:
1. Knowledge of the physical properties of water: Water is the most abundant compound on Earth 's surface, covering about 70 percent of the planet. In nature, water exists in liquid, solid, and gaseous states. It is a dynamic equilibrium between solid and gas states at standard temperature and pressure. At room temperature it is tasteless and odourless, nearly colourless with a hint of blue. Many substances dissolve in water and is commonly called a universal solvent. Because of this, water in nature and in use is rarely pure and some of its properties may vary slightly from those of pure substances. However there are many compounds that are essentially , if not completely , insoluble in water. Water is the only common substance found naturally in all three common states of matter and is essential for all life on Earth.
Molar mass: 18.01528 g/mol
Density: 1,000.00 kg/m³
Boiling point: 99.98 °C
Formula: H2O
Melting point: 0.0 °C
IUPAC ID: Oxidane, Water
2. Characteristics of water including buoyancy, turbulence and thermal effects :
Specific heat :protects from rapid temperature loss, high so takes long to heat up, amount energy takes to raise 1g 1 degree c
Heat of vaporization :evaporative cooling, high, pulls heat from body, keeps you cool. universal solvent: water both charges, solute being dissolves, solvent does dissolving, hydrophilic loves water (+/-), hydrophobic hates water (no charge), ampipathic (both
Cohesion and adhesion: cohesion water bond to water, adhesion water bond to anything else hydrophilic, capillary action both work to move water up tree roots
Surface tension: hydrogen bonds give you surface tension, gives eco systems, water striders
Insulator and density: ice less dense than water, insulates lakes, rigid hydrogen bonds.
Buyoancy:
It is the upward force of water that allows objects to float, it. The
1. Knowledge of the physical properties of water: Water is the most abundant compound on Earth 's surface, covering about 70 percent of the planet. In nature, water exists in liquid, solid, and gaseous states. It is a dynamic equilibrium between solid and gas states at standard temperature and pressure. At room temperature it is tasteless and odourless, nearly colourless with a hint of blue. Many substances dissolve in water and is commonly called a universal solvent. Because of this, water in nature and in use is rarely pure and some of its properties may vary slightly from those of pure substances. However there are many compounds that are essentially , if not completely , insoluble in water. Water is the only common substance found naturally in all three common states of matter and is essential for all life on Earth.
Molar mass: 18.01528 g/mol
Density: 1,000.00 kg/m³
Boiling point: 99.98 °C
Formula: H2O
Melting point: 0.0 °C
IUPAC ID: Oxidane, Water
2. Characteristics of water including buoyancy, turbulence and thermal effects :
Specific heat :protects from rapid temperature loss, high so takes long to heat up, amount energy takes to raise 1g 1 degree c
Heat of vaporization :evaporative cooling, high, pulls heat from body, keeps you cool. universal solvent: water both charges, solute being dissolves, solvent does dissolving, hydrophilic loves water (+/-), hydrophobic hates water (no charge), ampipathic (both
Cohesion and adhesion: cohesion water bond to water, adhesion water bond to anything else hydrophilic, capillary action both work to move water up tree roots
Surface tension: hydrogen bonds give you surface tension, gives eco systems, water striders
Insulator and density: ice less dense than water, insulates lakes, rigid hydrogen bonds.
Buyoancy:
It is the upward force of water that allows objects to float, it. The
Bibliography: Internet: http://www.evercarepoolandspas.com/service.php Wikipedia, hard and soft water http://ga.water.usgs.gov/edu/waterproperties.html Books: Camelot international – Spa therapy manual and study guide, page 135-141, 155. Spa therapy Guide by Joan Scott & Andrea Harrison printed 2006, page 148-160, 172-175, 182-201.