翻訳と辞書
Words near each other
・ Surface warfare
・ Surface warfare insignia
・ Surface water
・ Surface Water Improvement and Management Program
・ Surface Water Ocean Topography Mission
・ Surface water rescue
・ Surface Water Simulation Modelling Programme
・ Surface water sports
・ Surface wave
・ Surface wave detection by animals
・ Surface wave inversion
・ Surface wave magnitude
・ Surface weather analysis
・ Surface weather observation
・ Surface Web
Surface-area-to-volume ratio
・ Surface-assisted laser desorption/ionization
・ Surface-barrier transistor
・ Surface-conduction electron-emitter display
・ Surface-enhanced laser desorption/ionization
・ Surface-enhanced Raman spectroscopy
・ Surface-extended X-ray absorption fine structure
・ Surface-mount technology
・ Surface-supplied diving
・ Surface-tension values
・ Surface-to-air missile
・ Surface-to-surface intersection problem
・ Surface-to-surface missile
・ Surface-underwater ship
・ Surface-water hydrology


Dictionary Lists
翻訳と辞書 辞書検索 [ 開発暫定版 ]
スポンサード リンク

Surface-area-to-volume ratio : ウィキペディア英語版
Surface-area-to-volume ratio

The surface-area-to-volume ratio, also called the surface-to-volume ratio and variously denoted sa/vol or SA:V, is the amount of surface area per unit volume of an object or collection of objects.
In chemical reactions involving a solid material, the surface area to volume ratio is an important factor for the reactivity, that is, the rate at which the chemical reaction will proceed.
For a given volume, the object with the smallest surface area (and therefore with the smallest SA:V) is the sphere, a consequence of the isoperimetric inequality in 3 dimensions. By contrast, objects with tiny spikes will have very large surface area for a given volume.
== Dimension ==
The surface-area-to-volume ratio has physical dimension L−1 (inverse length) and is therefore expressed in units of inverse distance. As an example, a cube with sides of length 1 cm will have a surface area of 6 cm2 and a volume of 1 cm3. The surface to volume ratio for this cube is thus
:\mbox = \frac = 6~\mbox^.
For a given shape, SA:V is inversely proportional to size. A cube 2 cm on a side has a ratio of 3 cm−1, half that of a cube 1 cm on a side. Conversely, preserving SA:V as size increases requires changing to a less compact shape.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Surface-area-to-volume ratio」の詳細全文を読む



スポンサード リンク
翻訳と辞書 : 翻訳のためのインターネットリソース

Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.