The heat removed from a fluid as indicated by line "3" in the illustration is known as __________. sub cooling latent heat of condensation See illustration SG-0001.
• Latent heat vs sensible heat on a temperature‑vs‑BTU diagram • What happens to temperature during condensation at the saturation point (around 212°F for water)? • Definition of sub cooling in a condensate or refrigerant system
• On line "3" in the illustration, is the temperature changing or staying constant while heat is being removed? What type of heat (latent or sensible) does that represent? • Does sub cooling occur at the saturation temperature or below the saturation temperature? Compare that to where line "3" lies on the graph. • Look at what phase the fluid is in at the start and end of line "3". Is it changing phase, or just changing temperature within the same phase?
• Verify whether line "3" is horizontal (constant temperature) or sloping (changing temperature). • Check if line "3" spans the region where the substance goes from vapor to liquid at 212°F or stays entirely in one phase. • Confirm the definition: sub cooling = cooling a liquid below its saturation (condensing) temperature vs latent heat of condensation = heat removed during phase change at constant temperature.
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