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## Homework Statement

Trying to calculate changes in psi and temperature with a known change of volume.

One cubic foot of air(14.7 psi) compressed to one tenth its original volume. 10:1 compression ratio.

Starting temp=70° F or 294° K

## Homework Equations

Don't know the equasion. That is the problem. I am really looking for the correct formula so that I can apply it to my engine building. It helps with boost and compression ratios.