Reduced Pressure formula |
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| \( p_r \;=\; \dfrac{ p }{ p_c }\) | ||
| Symbol | English | Metric |
| \( p_r \) = Reduced Pressure | \(dimensionless\) | \(dimensionless\) |
| \( p \) = Actual Pressure of the Substance | \(lbf\;/\;in^2\) | \(Pa\) |
| \( p_c \) = Critical Pressure of the Substance | \(lbf\;/\;in^2\) | \(Pa\) |
Reduced pressure, abbreviated as \(p_r\), a dimensionless number, compares the actual pressure if a substance to its critical pressure.
