What do we call a vapor whose partial pressure is lower than its equilibrium vapor pressure?

Stoichiometry MCQs for PPSC, FPSC, NTS, and Pakistan government job tests. Select an option below, then read the explanation.

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Subject
Stoichiometrychemical-engineering › stoichiometry
Published
4 Mar 2019
Last updated
28 May 2026

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Explanation

When the partial pressure of a vapor is below its equilibrium vapor pressure, the vapor is said to be superheated. Saturated vapor has partial pressure equal to equilibrium pressure, while unsaturated vapor refers to vapor with partial pressure less than saturation but is not commonly used in this context. Dry gas is not a standard term for this condition.

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