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## Main Question or Discussion Point

It is said that, for real gases at high pressure, the measured volume is higher than the calculated volume.

My perception of the volume of the gas, as of now, is the following: The free space available for the gas to move. It excludes the volume of the molecules. So on increasing the pressure, the volume of the molecules becomes significant. So the measured volume should be less than the calculated volume. (Calculated volume is the volume obtained from the ideal gas equation).

I reckon that the confusion of mine arose due to the misconception of "volume". Please correct me :)

My perception of the volume of the gas, as of now, is the following: The free space available for the gas to move. It excludes the volume of the molecules. So on increasing the pressure, the volume of the molecules becomes significant. So the measured volume should be less than the calculated volume. (Calculated volume is the volume obtained from the ideal gas equation).

I reckon that the confusion of mine arose due to the misconception of "volume". Please correct me :)