S law意思
"S" law is not a term that I'm familiar with in the context of physics, chemistry, or any other scientific discipline. It's possible that you might be referring to "S" as a variable or symbol in a specific context, but without more information, it's difficult to provide a precise meaning.
However, if you're looking for information on a law or principle that starts with "S" in a scientific context, here are a few possibilities:
-
Snell's Law (or Snell-Descartes Law) in optics, which describes the relationship between the angles of incidence and refraction, as well as the indices of refraction between two media.
-
Second Law of Thermodynamics, which states that the total entropy of an isolated system can never decrease over time.
-
Stefan-Boltzmann Law in physics, which describes the power emitted from a black body in thermal equilibrium with its environment per unit area, depending on the fourth power of the body's temperature.
-
Specific Heat Capacity (S in molar heat capacity), which is the amount of heat required to raise the temperature of one mole of a substance by one kelvin.
-
Solubility Product Constant (Ksp), which is a measure of the propensity of a substance, typically a sparingly soluble salt, to dissolve in a given solvent.
If none of these match the context you're referring to, please provide more details so I can better assist you.