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  • What happens to air in a hydrostatic test • Physics Forums
    The discussion revolves around the behavior of air in a hydrostatic test of water lines, specifically addressing the implications of air presence in an enclosed pipeline during pressure testing The scope includes practical applications in plumbing, theoretical considerations of gas solubility in liquids, and some light-hearted inquiries One participant notes that if air is present in an
  • Pressure inside a sealed container - Physics Forums
    The discussion revolves around understanding the pressure dynamics inside a sealed container, particularly after water has stopped flowing The subject area includes concepts from fluid mechanics and gas laws, specifically Boyle's law and the behavior of gases under varying conditions Conceptual clarification, Assumption checking, Exploratory Participants explore the implications of sealing a
  • What temperature F does water freeze at 65 PSI - Physics Forums
    The discussion centers around the freezing point of water at a pressure of 65 PSI, exploring how pressure affects the freezing temperature Participants express frustration with existing resources and seek a formula or explanation for the phenomenon The conversation includes references to phase diagrams and empirical observations related to freezing under pressure One participant states that
  • Pressure while heated - half full or full container - Physics Forums
    The discussion centers around the behavior of pressure in a liquid-filled container when heated, specifically comparing a container filled entirely with water to one that is half full of water and half full of air The context includes theoretical considerations and practical implications, particularly in relation to safety when heating sealed containers Some participants propose that the
  • What happens to moisture when air compressed? - Physics Forums
    The discussion revolves around the effects of air compression on moisture content, specifically whether compressed air holds less moisture than air at ambient pressure Participants explore the relationship between pressure, temperature, and the ability of air to retain water vapor, considering both theoretical and practical implications
  • Integrating Bulk Modulus to Find Pressure at Variable Depth
    The discussion revolves around the application of the bulk modulus to determine pressure at a variable depth, specifically in the context of hydrostatics and fluid mechanics Participants explore the relationship between pressure, density, and depth, while attempting to integrate these concepts mathematically One participant states the pressure at 5000 ft is calculated using the formula
  • Calculating flow rate when emptying liquid from a closed-top tank
    The discussion revolves around calculating the flow rate of liquid being emptied from a closed-top tank, focusing on the dynamics of fluid flow and pressure changes as the tank empties Participants explore concepts related to fluid mechanics, particularly the application of Bernoulli's principle and the momentum equation in the context of non-steady flow Exploratory, Conceptual clarification
  • Relationship between pressure and temperature for liquids
    The discussion revolves around the relationship between pressure and temperature for liquids, particularly in the context of boiling and vapor pressure Participants explore whether a proportional relationship exists similar to that of gases under the ideal gas law, while acknowledging the complexities involved with liquids Exploratory, Conceptual clarification, Assumption checking
  • Filling a pool with the hose end above or in the water
    From a pure pressure point of view, submerging the hose should make no difference: as the end of the hose is placed deeper under water, the output pressure of the hose will become higher but the opposing pressure from the water in the pool will increase by the same amount
  • Calculating Liquid Height Difference in U-Tube | Fluid Mechanics . . .
    The problem involves calculating the height difference of liquid surfaces in a U-tube containing water and oil, focusing on fluid mechanics principles The setup includes 100 millilitres of water and 100 millilitres of oil with a density that is 80% that of water Participants discuss the pressure equilibrium at a certain point in the U-tube, with one participant noting the need to match





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