Final answer:
The rated capacity of the MC-7 air compressor in cubic feet per minute at 100 psi cannot be determined without specific data from the manufacturer about the compressor's performance characteristics.
Step-by-step explanation:
To determine the rated capacity of air per minute for the MC-7 air compressor to discharge a pressure of 100 psi, we need additional information specific to that model's performance characteristics, which are not provided in the question. Typically, the capacity of an air compressor is measured in cubic feet per minute (CFM), and the manufacturer would specify the CFM rating at a given pressure. Without this critical information about the MC-7, it is impossible to give an accurate answer.
The reference information provided in the question, such as the volume of air at different pressures at altitude or within containers, relates to the general principles of gas laws in physics, specifically Boyle's Law and the Ideal Gas Law, which describe the relationship between pressure, volume, and temperature of a gas.