When vapor is in contact with and remains at the same temperature as the boiling liquid from which it was generated, the vapor and liquid are said to be in which of the following?
• Relationship between a boiling liquid and the vapor directly above it • Meaning of saturated versus superheated vapor in basic thermodynamics • Difference between sensible heat and latent heat
• Think about what happens to vapor that is sitting directly over a boiling liquid and is the same temperature as that boiling liquid. Has it absorbed all the heat it can at that temperature? • Which term describes a condition where vapor cannot hold any more of that substance in vapor form at that temperature? • Which options are real thermodynamic terms you’ve seen in tankerman or basic cargo-handling theory, and which look like distractors?
• Check which term is used when vapor is in equilibrium with its liquid at the same temperature (equilibrium / phase-change condition). • Verify the definition of sensible heat (temperature change with no phase change) versus latent heat (heat added during phase change without temperature change). • Eliminate any answer choices that are not standard thermodynamic or cargo-handling terms used in USCG study material.
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