johtuvuudessa

johtuvuudessa is in Finnish the inessive form of johtavuus, a term used primarily in physics and chemistry. Johtavuus means conductivity: the property of a material or solution to conduct electric current. It is a central concept in electrochemistry, materials science and sensing, and it is commonly discussed in relation to liquids, electrolytes, and solids. Conductivity is influenced by temperature, composition, concentration of ions, and phase. The inverse property is resistivity (vastus), and the two are connected by the relation conductivity ≈ 1 / resistivity. Measurements are typically reported in siemens per metre (S/m).

Etymology and grammatical note: johtavuus is formed from the verb johtaa (to lead or conduct) with the noun-forming suffix -vuus. The form johtuvuudessa expresses the inessive case meaning “in conductivity” or “in the conductivity of a substance.” This form is used to situate observations within the context of a sample’s conductive properties, for example in reporting results from a conductivity measurement.

Applications and usage: johtuvuudessa is encountered in scientific writing when discussing the conductive properties of a material or solution. Typical statements include reported conductivity values (e.g., “veden johtuvuudessa mitattiin X S/m”) and descriptions of how conductivity changes with temperature, concentration, or impurities. Related terms include sähköjohtavuus (electrical conductivity), molar conductivity, and resistivity.

See also: sähköjohtavuus, resistanssi, ioniliuos, materiaalitutkimus.