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When temperature of water decreases from 4 decrees to 0 decrees it expands instead of contraction.why?
Wiki User
∙ 9y ago
The cause is considered to be another structure of water molecules under 3,98 0C; molecules are now not randomly oriented and begin a process of certain pre-crystalline organization, the thermal energy being insufficient to maintain the randomness.
Wiki User
∙ 9y ago
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Why when altitude increasestemperature decreases in the troposphere?
With altitude, gravitational pull on the air decreases, which means the air expands and air pressure drops. When any gas expands, it cools off.
As water is cooled 4c to 0c its density?
the density of water is mostly high when its at 4 degrees celsius so the answer would be that the density of the water decreases from 4 degrees celsius to 0 degrees celcius
When a gas expands whether its density increases or decreases?
the density decreases because the particles spread out and so less particles occupy the same amount of area meaning the substance is less dense.
What expands most when the temperature is lowered water or helium or iron or wood?
helium as it is gas.
Why does warm moist air form clouds when it rises-?
Warm air expands and cools as it rises; the temperature decreases below dew point, so the water vapour changes phase from gas to liquid
How do solids expand said in detail?
a solid expands by heat because if you decrees the temperature it will make it freeze and if it is warmer it will expand
What happens to a volume of a gas when temperature is decreased?
Temperature and volume vary directly, so if temperature decreases, so does volume. Volume decreases because the measure of the average kinetic energy of the gas particles (temperature) is decreasing also. When that happens, a gas cannot expand, and will decrease.
What changes takes place in the liquid inside a thermometer when the thermometer is placed into something hot?
The liquid in thermometers expands when temperature increases (and contracts when temperature decreases). When it expands, the only place for it to expand 'to' is up the thermometer (into the empty space above it).
Why when altitude increasestemperature decreases in the troposphere?
With altitude, gravitational pull on the air decreases, which means the air expands and air pressure drops. When any gas expands, it cools off.
What happens to an object's density when it heats up and expands?
The density decreases.
What happens to business as demand decreases?
expands and hires new employees
What objects expands when its cold?
Most substances will contract when the temperature decreases. One well-known exception is water; between 4°C and 0°C it will expand if it is cooled down.
What type of weather instruments are used to take weather measurements and how do they work?
Anemometer-Has 4 cup-like bowls and it spins with the MPH of the Wind Thermometer-Mercury expands with temperature increases and decreases
Why does water have different densities?
The density of water can depend on various factors, including:* The exact isotope mix. * Impurities. * Temperature (above 4 °C, water expands when heated; the density decreases).
Mercury expands in a regular way How does this relate to the use of mercury in themometres?
Mercury expands as it cools. Mercury is placed within the bulb at the lower end of a glass tube so that, as the temperature decreases, the mercury may expand within the tube at a regular rate to make judging the temperature possible. Edit By Rouefever: Mercury expands as it is heated, not cooled, like many other substances. Cooling Mercury will make it contract, and then solidify (or freeze).
Does a thermometer's mercurry expand contract on condenses?
it expands and contracts when the temperature drops, the mercury contracts...when the temperature increases, the mercury expands
Why do balloons expands when its temperature increases?
Balloons are filled with gas and gas expands when temperature increases. Gas also condenses when the temperature is lowered. This is due to Charles' law.
