Students Alert : Do you know these fact about water ? Then notice and Show off at School ... :-) Top Ten ...
- Water can boil and freeze at the same time
Seriously, it's called the 'triple point', and it occurs when the temperature and pressure is just right for the three phases (gas, liquid, and solid) of a substance to coexist in thermodynamic equilibrium. This video shows cyclohexane in a vacuum.
Reference: Liquids boil when their vapor pressure is equal to the pressure exerted on the liquid by its surroundings. The normal boiling point of water is 100oC because this is the temperature at which the vapor pressure of water is 760 mmHg, or 1 atm.
- Roughly 70 percent of an adult’s body is made up of water.
Water is of major importance to all living things; in some organisms, up to 90% of their body weight comes from water. Up to 60% of the human adult body is water. According to H.H. Mitchell, Journal of Biological Chemistry 158, the brain and heart are composed of 73% water, and the lungs are about 83% water.
3.Drinking too much water too quickly is Dangerous .
Drinking too much water too quickly can lead to water intoxication. Water intoxication occurs when water dilutes the sodium level in the bloodstream and causes an imbalance of water in the brain.In rare cases, drinking an extreme amount in a short time can be dangerous. It can cause the level of salt, or sodium, in your blood to drop too low. That's a condition called hyponatremia.It's very serious, and can be fatal. You may hear it called water intoxication.
- Water use in Drinks .
Soft drinks, coffee, and tea, while made up almost entirely of water, also contain caffeine. Caffeine can act as a mild diuretic, preventing water from traveling to necessary locations in the body.
5.Pure water ph value ?
Pure water (solely hydrogen and oxygen atoms) has a neutral pH of 7, which is neither acidic nor basic.
- Water on our planet .
Somewhere between 70 and 75 percent of the earth’s surface is covered with water.
The total amount of water on the earth is about 326 million cubic miles of water.
- Toilet flushing and water amount use daily .
The average person in the United States uses anywhere from 80-100 gallons of water per day. Flushing the toilet actually takes up the largest amount of this water. The United States uses nearly 80 percent of its water for irrigation and thermoelectric power.but the United States uses about 346,000 million gallons of fresh water every day.
- Time to Thirsty .
By the time a person feels thirsty, his or her body has lost over 1 percent of its total water amount.
- Water relation to weight .
The weight a person loses directly after intense physical activity is weight from water, not fat.
10 . How much water to Drink daily according to Science ?
Everyone has heard the advice, "Drink eight 8-ounce glasses of water a day." That's about 1.9 liters, which isn't that different from the Institute of Medicine recommendations. Although the "8 by 8" rule isn't supported by hard evidence, it remains popular because it's easy to remember.