Freezing water
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Horseless
Well-known member
MikeC":2cqsyu79 said:
Mike it really doesn't matter which freezes first. Example: When I lose my electricity, by morning the standing water in my automatic waterer will be frozen as well as the pressurized line feeding it. :lol:
Just_a_girl
Well-known member
Horseless":2im42g5r said:
Guess it doesn't really, but which do you think will freeze the quickest, water standing still or water under pressure?
Everything around us is under some sort of pressure, and you won't even need a lab setting to get your answer. You will need a coat. ;-)
If you are in a area with right conditions...you can take a walk along side a river to get your answer.
Narrow sections of a river, which are always under more pressure because of rapid movement of molecules freezes after a wider part of the river where the water flows more calm.
Easy and painless....except for the cold.
Now about that question on "what size container will hold $1 worth of gas?"
I'm just yanking your chain.... :lol:
MistyMorning
Well-known member
MikeC":2kzd0stu said:
My Filipino neighbor made watermelon pickles, in which she placed numerous jalapeno peppers, she than sealed the whole works in a ............... yep quart fruit jar!
About blew the top of my head off! :shock:
Moocow11":2emakvp9 said:
you would think, but deep ocean is not frozen although it is very cold :???:
perda04
Well-known member
The temperature at which water is most dense is 4C. Water contracts as it approaches freezing then expands greatly once it hits 0C. It is why ice floats on lakes, oceans, etc rather than sink and destroy the ecosystem. The water at the bottom is not colder than 4C.
http://www.newton.dep.anl.gov/askasci/c ... m00379.htm
http://www.newton.dep.anl.gov/askasci/c ... m00379.htm
novatech
Well-known member
Salt water will not freeze as fast.Hippie Rancher":36uu8pk2 said:
Daybreak
Well-known member
Howdy,
You also need to take in account for the earth thermal temp of the water.
Water line buried 28" connected to a freeze proof hydrant, 3' hose, auto fill float, stock tank.
Sitting water in the stock tank will freeze first, cows drink, more thermal warmed water enters hydrant and hose. say around 60psi (maybe 40 degrees F)
You also need to take in account for the earth thermal temp of the water.
Water line buried 28" connected to a freeze proof hydrant, 3' hose, auto fill float, stock tank.
Sitting water in the stock tank will freeze first, cows drink, more thermal warmed water enters hydrant and hose. say around 60psi (maybe 40 degrees F)
tytower
Well-known member
I was just thinking when water boils at sea level it takes longer than when it boils at my farm which is 2200 ft above sea level.
Water boils quicker at that height and is not as hot as boiled water at sea level
So stands to reason that water's freezing point would be lower at sea level than at 2200 ft. Thats because the air pressure is higher at sea level
The river flowing faster is not really pheasable as movement obviously slows down freezing.
Water boils quicker at that height and is not as hot as boiled water at sea level
So stands to reason that water's freezing point would be lower at sea level than at 2200 ft. Thats because the air pressure is higher at sea level
The river flowing faster is not really pheasable as movement obviously slows down freezing.
I think pressure may keep it from freezing as fast. I left an opened but recapped half a bottle of coke in the truck one night. Temp got down to 17 degrees. I got in the truck and noticed that the coke hadn;t frozen so I opened it to take a drink. As soon as I opened it, I heard that fizzy sound like you get when a bottle has been reopened and the coke instantly turned to a thick slush.
JR Cattle Co.
Well-known member
Pressure and heat are inversely related... Example:As you decrease the pressure, the water molecules heat up, just as when you increase pressure, the water molecules cool down. Heat in these circumstances is produced by the friction of the molecules as they collide with eachother... so, if you increase the pressure, the area for the molecules to travel is smaller, resulting in less collisions and therefore less heat.. If you decrease the pressure, then the area for molecules to travel increases resulting in more violent collisions which results in more heat. Take this for example: As most of us know, when a cow kicks, it hurts worse if she is at a full legs length away as opposed to being snugged up to her side. The potential energy of the cows kick changes as you move nearer or further away. The closer, the less violent and painful the kick is, as you move further away, the more violent and painful the kick becomes. The same is true with the water molecules. The reason adding salt to water makes it cooler, is because the chemical reaction between the hydrogen molecules in the water and the sodium molecules in the salt results in heat (energy) being pulled from the solution (the water) in order to break the bonds of the NaCl (salt). This is an exothermic reaction because the heat (energy) is pulled from the water resulting in the temperature decrease.
larryshoat
Well-known member
Yea, and it don't get no better than that!dun":3mv6tjn6 said:
