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That's going to depend on
-- the surface area of the pool
-- the temperature of the water in the pool
-- the temperature of the air
-- the relative humidity of the air
-- the barometric pressure
-- the period of time you're interested in (evaporation in 30 minutes ? an hour ? a day ?)
-- the winds during that period of time
Open the yellow pages and phone up a business in your area that sells pools and/or pool supplies.
From experience, they'll have the answer for your area of the country, and probably for your city and
your neighborhood.
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How much water is lost in a day?
The answer to this question is Dependent on many variables. This depends on where the water is getting lost, how fast it is getting lost, etc...
How many gallons of water will fit in a 76x80x9 container?
It would depend upon the units you are using for the length. Feet? Inches? Here are both: 1) 76" x 80" x 9" container is 54720 cubic inches, which is 236.88 gallons. 2) 76 ft x 80 ft x 9 ft is (a huge pool?) 54720 cubic feet, which is 409,334 gallons. (There are 1728 cubic inches in a cubic foot, so we could have multiplied. But the lost significant digits in the calculations mean that 236.88 x 1728 is just 409,328 gallons.)
How does having a pool affect your monthly water bill?
Once you've filled your pool, and taken that one time hit, there will be some routine water usage to replace water lost by evaporation. It is possible to get enough rain to replace it, so the cost might be zero. If you get no rain, and it's hot and sunny, you might loose up to a foot of water in a month. You will also loose some water in periodic backwashing of your filter. So you could be looking at 10-20% of your pool volume per month in makeup water. I'm no expert, just reporting my own experience.
Why do leaves have different shapes?
AnswerThere are lots of reasons for leaves varying in shape and size, listed are just a few.Water Retension: Plants living in dry condition are likely to have leaves with a small surface area that are often needle shaped in order to retain water. 90% of the water absorbed by a plant is lost through evaporation through the leaves.Catching Food: Some plants have leaves shaped like slides, these are also slipperl and insects unfortunate enough to land on them are likely to slip into a vat of water and digestive juices.Protection: Some plants have needle shaped leaves for protection from predators, a good example are the coniferous trees in the arctic. Their leaves are shaped like spines to deter hungry animals. There's not much sunlight or rain in the arctic so every leaf is precious.Getting rid of excess water: Plants breath through tiny spores in their leaves, if these were to become clogged with water, the plant would effectively drown. Most leaves are shaped especially to allow water to run off them, with the veins in the leaves acting as gutters.
Why actual yield is always less than theoratical yield?
Actual yield is always less than theoretical yield because: 1) Much amount of product is lost in experimental techniques i.e. filtration, evaporation etc. 2) Much amount of product is lost in energy i.e. heat energy.
