Measuring instantaneous rates is the most direct way of determining the rate law of a reaction, but it is not always convenient, and it may not be possible to do so with precision.
piece (pÄs) n. 1. A thing considered as a unit or an element of a larger thing, quantity, or class; a portion: a piece of string. 2. A portion or part that has been separated from a whole: a piece of pie. 3. An object that is one member of a group or class: a piece of furniture.
Webster Dictionary (0.00 / 0 votes) Rate this definition: Scrap (verb) something scraped off; hence, a small piece; a bit; a fragment; a detached, incomplete portion. Scrap (verb) specifically, a fragment of something written or printed; a brief excerpt; an unconnected extract. Scrap (verb)