# 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?

###### FREE Expert Solution

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:

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) 60 40.1 70 38.6 80 37.2 90 35.6 100 0.123 120 0.102 140 0.087

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

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