Which term describes the ability to differentiate liquids inside an interstice?

• A. Discriminating
• B. Non-Discriminating
• C. Thermal
• D. Capacitive

Answer: (A)

Discriminating describes the ability to tell liquids apart when they occupy the same interstice. In porous or interstitial spaces, different fluids can coexist in a tiny pore, and a discriminating capability means you can distinguish them based on how their properties differ—such as dielectric behavior, conductivity, or how they interact with the solid matrix. This captures the general ability to identify which liquid is present inside an interstice, not tied to a specific measurement method. The other terms don’t fit as well: non-discriminating implies no distinction between fluids; thermal relates to temperature effects rather than the inherent ability to differentiate; capacitive points to a particular sensing technique, not the overall capability.