In an ideal fluid that is completely enclosed, what occurs with pressure changes?

In an ideal fluid that is completely enclosed, pressure changes are transmitted equally to all points throughout the fluid. This concept is founded on Pascal's principle, which states that when pressure is applied to an enclosed fluid, the change in pressure is transmitted undiminished and equally in all directions.

This means that if you apply pressure at one point in the fluid, that pressure will affect every part of the fluid equally, without any variation. Such behavior is characteristic of ideal fluids, which are incompressible and have no viscosity. Therefore, in a scenario involving an enclosed ideal fluid, any alteration in pressure at one location will result in a uniform change in pressure throughout the entire fluid. This principle is essential in understanding how fluids behave in closed systems, particularly in applications like hydraulic systems, where pressure is used to perform work.