Q:

# What is the melting point of oxygen?

A:

The melting point of oxygen is 54.8 Kelvin, which is equivalent to -218.35 degrees Celsius or -361.03 degrees Fahrenheit. Oxygen melts at such a low temperature that frozen oxygen is not found naturally in the environment.

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The boiling point of oxygen, where the oxygen turns from a liquid into a gas, is 90.2 Kelvin (-182.95 Celsius, -297.31 Fahrenheit); liquid oxygen, like solid oxygen, does not exist naturally. Oxygen exists as a gas in the environment, where it makes up roughly 20 percent by volume of earth's atmosphere. Oxygen also exists dissolved in water, where it is consumed by aquatic plants and animals.

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