Final answer:
The question addresses the conditions to consider gases as 'compressed' based on absolute pressure and temperature, but the specific values for the blanks are not provided in the references, and as such, cannot be accurately filled in based on the information at hand.
Step-by-step explanation:
The question pertains to the absolute pressure in vessels containing compressed gases and asks at what pressure and temperature do the gases qualify as being compressed. According to the reference provided, we can discuss that gases are considered compressed under certain conditions based on pressure and temperature.
However, the specific values to fill in the blank cannot be determined directly from the reference materials provided. The example given states that a cylinder of compressed natural gas has pressures measured in atmospheres at a given temperature. It is also mentioned that absolute pressure is the sum of gauge pressure and atmospheric pressure and that temperatures must be in Kelvin for gas law calculations.
In context, compressed gases typically have an absolute pressure that exceeds atmospheric pressure by a significant amount, and the blanks likely refer to a standard threshold at room temperature. However, without additional context or a standard reference, the correct answer cannot be ascertained from the supplied references.
Therefore, based on my expertise, I can provide an informative response related to the topic but cannot fill in the blanks as requested in the student's question.