The discussion revolves around the concept of pressure in fluids, specifically addressing the interpretation of gauge pressure in relation to atmospheric pressure as depicted in a diagram. Participants are examining the validity of the equation Ptotal = Patsurface + Pgauge in the context of fluid mechanics.
The conversation is ongoing, with some participants providing clarifications about the definitions of gauge pressure and its dependence on fluid weight. There is recognition of the relationship between pressure and depth, but no explicit consensus has been reached regarding the initial question about the equation's validity.
Participants are navigating assumptions about pressure definitions and the implications of fluid weight, with some confusion regarding the diagram referenced in the original post. The discussion reflects a common challenge in understanding fluid pressure concepts in a homework context.
It's the pressure of the fluid, not the volume, that counts. But yes, at the bottom of the container the pressure due to the fluid is greatest. The pressure at any point below the surface is given by ρgh, regardless of volume.needingtoknow said:
