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Designed variables and their properties used in experimental design.
| Design Variables (factors) | Coded variables | Actual variables | Actual values of coded levels | ||
|---|---|---|---|---|---|
| Temperature (K) | X1 | T | 463.15 | 483.15 | 503.15 |
| Partial pressure of CO (bar) | X2 | PCO | 0.9 | 1.85 | 2.8 |
| Partial pressure of H2 (bar) | X3 | 0.9 | 1.85 | 2.8 | |
