About: Surface-area-to-volume ratio

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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. SA:V is an important concept in science and engineering. It is used to explain the relation between structure and function in processes occurring through the surface and the volume. Good examples for such processes are processes governed by the heat equation, i.e., diffusion and heat transfer by conduction. SA:V is used to explain the diffusion of small molecules, like oxygen and carbon dioxide between air, blood and cells, water loss by animals, bacterial morphogenesis, organism's thermoregulation, design of artificial bone tissue, artificial lungs and many more biological and biotechnological

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rdf:type	Thing yago:Abstraction100002137 yago:MagnitudeRelation113815152 yago:Ratio113819207 yago:Relation100031921 disease yago:WikicatRatios
rdfs:label	Relació àrea-volum (ca) A/V-Verhältnis (de) Relación superficie-volumen (es) Azalera eta bolumenaren arteko erlazioa (eu) Rapport aire-volume (fr) Rasio luas permukaan terhadap volume (in) Surface-area-to-volume ratio (en)
rdfs:comment	Rasio luas permukaan terhadap volume, juga disebut rasio permukaan terhadap volume, adalah rasio yang membandingkan luas permukaan suatu objek dengan volumenya. Dalam reaksi kimia yang melibatkan benda padat, rasio ini merupakan faktor yang penting untuk menentukan reaktivitas. Bangun ruang dengan rasio luas permukaan terhadap volume yang paling kecil adalah bola, sementara benda-benda dengan ujung-ujung yang menyempit akan memiliki rasio yang sangat besar. (in) La relació àrea de àrea-volum de vegades escrita com sa/vol o SA:V, és el cocient entre l'àrea superficial d'un objecte i el volum d'aquest objecte. La relació àrea-volum s'expressa en unitat de la inversa de la unitat de distància. Per exemple un cub els costats del qual fan a té una àrea superficial de 6a² i un volum d'a3. Per tant la relació surfície-volum en el cas d'un cub és. (ca) Das Oberfläche-zu-Volumen-Verhältnis (A/V-Verhältnis) ist der Quotient aus der Oberfläche und dem Volumen eines geometrischen Körpers. Es hat die Dimension 1/Länge. Bei gegebenem Volumen weist von allen Körpern die Kugel die kleinste Oberfläche auf. Bei wachsendem Volumen nimmt das A/V-Verhältnis bei allen Körpern ab, da die Oberfläche quadratisch, das Volumen jedoch kubisch (in der dritten Potenz) wächst. Das ist von Bedeutung für die Abkühlungsgeschwindigkeit verschieden großer Massen: Die Abkühlung erfolgt proportional zur Größe der Oberfläche, die beim Größerwerden jedoch langsamer wächst als das Volumen, so dass größere Massen langsamer abkühlen als kleine. Das ist auch eine Erklärung dafür, dass Kaiserpinguine in der Antarktis größer sind und somit mehr Wärme behalten als Galápago (de) La relación superficie-volumen, a veces escrita como sa/vol o SA:V, es el cociente entre el área superficial de un objeto y el volumen de dicho objeto. La relación superficie-volumen se expresa en unidades de la inversa de la unidad de distancia. Por ejemplo, un cubo cuyos lados miden a posee un área superficial de 6a2 y un volumen de a3. Por lo tanto la relación superficie-volumen para el caso de un cubo es. (es) Azalera eta bolumenaren arteko erlazioa arazo fisiko bat da. Har dezagun adibide bat ikusteko: * Demagun metro bateko aldea duten 6 karraturekin kubo bat eraikitzen dugula. * Bere bolumena kalkulatzeko: 1 x 1 x 1 = 1 m3 * Bere azalera osoa: 6 x (1 x 1) = 6 m2 * Euren arteko erlazioa: 6 / 1 = 6 * Demagun kuboak 3 metro neurtzen duela, hau da, 3 aldiz handiagoa dela alde bakoitza: * Bere bolumena: 3 x 3 x 3 = 27 m3 * Bere azalera: 6 x (3 x 3) = 54 m2 * Euren arteko erlazioa: 54 / 27 = 2 * Demagun kuboak 6 metro neurtzen duela, hau da, hasierakoa baino 6 aldiz handiagoa dela alde bakoitza: * Bere bolumena: 6 x 6 x 6 = 216 m3 * Bere azalera: 6 x (6 x 6) = 216 m2 * Euren arteko erlazioa: 216 / 216 = 1 (eu) 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. SA:V is an important concept in science and engineering. It is used to explain the relation between structure and function in processes occurring through the surface and the volume. Good examples for such processes are processes governed by the heat equation, i.e., diffusion and heat transfer by conduction. SA:V is used to explain the diffusion of small molecules, like oxygen and carbon dioxide between air, blood and cells, water loss by animals, bacterial morphogenesis, organism's thermoregulation, design of artificial bone tissue, artificial lungs and many more biological and biotechnological (en) Le rapport aire-volume, aussi connu comme le rapport surface-volume ou SA:V, correspond à la quantité de surface d'un objet en fonction de chaque unité de volume. La valeur de ce rapport va influencer les caractéristiques thermiques d'un objet, la réactivité d'un élément chimique, ou la facilité d'un organisme à se nourrir. Cette notion ne doit pas être confondue avec celle de quotient isopérimétrique qui construit un autre rapport dépendant de la surface et du volume de l'objet et qui, lui, est sans unité et ne dépend ni de l'unité de longueur choisie ni de la taille de l'objet. (fr)
rdfs:seeAlso	Dust explosion
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dcterms:subject	Cell biology Chemical kinetics Physiology Ratios
Wikipage page ID	7282499 (xsd:integer)
Wikipage revision ID	1118782062 (xsd:integer)
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