Problem: The table below lists the density of O2 at various temperatures and at 1 atm. The normal melting point of O2 is 54 K.Temperature (K)Density (mol/L)6040.17038.68037.29035.61000.1231200.1021400.087Over what temperature range in the table is O2 a gas?

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We're being asked to determine what temperature range in the table is O2 present as gas

Recall that phase change in terms of termperature can be seen as:

solid Melting point liquid Boiling point gas


If the melting point of O2 is 54 K, then the phases of the temperature above it from 60K will be either liquid or gas

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Problem Details
The table below lists the density of O2 at various temperatures and at 1 atm. The normal melting point of O2 is 54 K.


Temperature (K)Density (mol/L)
6040.1
7038.6
8037.2
9035.6
1000.123
1200.102
1400.087



Over what temperature range in the table is O2 a gas?


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