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zorro
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What is the temperature at which water possesses minimum density?
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Abdul Quadeer said:Random guesses 50C 60C 100C?
Borek said:just find a density vs temperature table.
Borek said:However, what about 200 deg C?
Abdul Quadeer said:I searched on the internet but could not find it.
So 200 deg C is the answer?
Borek said:I think you are lying, the way 3 years old kids do.
No. Instead of waiting for being spoon feed start to think.
Abdul Quadeer said:the density decreases continuously with increase in temperature and attains a constant value
Abdul Quadeer said:It cannot decrease infinitely and become negative so there should be a limiting or constant value.
Borek said:What happens to water when heated?
Abdul Quadeer said:can we indefinitely increase the volume by heating?
Borek said:What happens to all compounds at high temperatures?
Its very easy but I did not think about it that way .Borek said:You are on the right track - wasn't that hard, eh?
Borek said:Trick is, there is no simple single temperature at which you can say "water decomposes here". It is an equilibrium process, so all we can do is to calculate percentage of water that is decomposed at given temperature - no idea about exact numbers, according to wikipedia at 2200 °C about 3% of water decomposes, at 3000 °C above 50% and so on. So there is no simple answer to the question as asked.
The temperature of minimum density is the temperature at which a substance reaches its highest density. This is also known as the "maximum density temperature".
The temperature of minimum density is important because it affects the physical properties of a substance. For example, in water, the temperature of minimum density is 4 degrees Celsius, which allows for aquatic life to survive in colder temperatures as the water at the bottom of a lake or ocean does not freeze.
The temperature of minimum density is calculated by measuring the density at different temperatures and plotting them on a graph. The point at which the density is highest is the temperature of minimum density.
No, not all substances have a temperature of minimum density. For example, gases do not have a temperature of minimum density as their density decreases as temperature increases.
Yes, the temperature of minimum density can change depending on the pressure and composition of a substance. For example, in water, the temperature of minimum density can change if there are impurities or if the pressure is altered, such as in deep ocean water.