Difference between revisions of "Density"

From Bioblast
Jump to: navigation, search
Line 1: Line 1:
 
{{MitoPedia
 
{{MitoPedia
 
|abbr=''ρ'', ''C'', ''D''
 
|abbr=''ρ'', ''C'', ''D''
|description='''Density''' is frequently a quantity divided by volume: mass density or mass concentration is mass per volume, ''M''·''V''<sup>-1</sup> [kg·m<sup>-3</sup>]; radiant energy density is radiant energy per volume, ''Q''·''V''<sup>-1</sup> [J·m<sup>-3</sup>]; charge density is charge per volume, ''Q''·''V''<sup>-1</sup> [C·m<sup>-3</sup>]. However, [[electric current density]] is current divided by area, ''j''=''I''·''A''<sup>-1</sup> [C·m<sup>-2</sup>]. Number density of entities or number concentration is numbers per volume, ''C''<sub>B</sub> = ''N''<sub>B</sub>·''V''<sup>-1</sup> [x·m<sup>-3</sup>]. In contrast, the amount-of-substance [[concentration]], ''c''<sub>B</sub> = ''n''<sub>B</sub>·''V''<sup>-1</sup> [mol·m<sup>-3</sup>] is not called a ''substance density'' ([[Cohen 2008 IUPAC Green Book |IUPAC]]). Thus the [[sample mass concentration]] is ''C<sub><u>m</u>X</sub>'' = ''m<sub>X</sub>''·''V''<sup>-1</sup> [kg·m<sup>-3</sup>], the [[mitochondrial concentration]] is ''C<sub>mtE</sub>'' = ''mtE''·''V''<sup>-1</sup> [mtEU·m<sup>-3</sup>], whereas the specific [[mitochondrial density]] is ''D<sub>mtE</sub>'' = ''mtE''·''m<sub>X</sub>''<sup>-1</sup> [mtEU·kg<sup>-1</sup>], and the [[mitochondrial content]] per object ''X'' is ''mtE<sub><u>N</u>X</sub>'' = ''mtE''·''N<sub>X</sub>''<sup>-1</sup> [mtEU·x<sup>-1</sup>] ([[Gnaiger 2019 MitoFit Preprint Arch]]).
+
|description='''Density''' is frequently a quantity divided by volume: mass density or mass concentration is mass per volume, ''M''·''V''<sup>-1</sup> [kg·m<sup>-3</sup>]; radiant energy density is radiant energy per volume, ''Q''·''V''<sup>-1</sup> [J·m<sup>-3</sup>]; charge density is charge per volume, ''Q''·''V''<sup>-1</sup> [C·m<sup>-3</sup>]. However, [[electric current density]] is current divided by area, ''j''=''I''·''A''<sup>-1</sup> [C·m<sup>-2</sup>]. Number density of entities or number concentration is numbers per volume, ''C''<sub>B</sub> = ''N''<sub>B</sub>·''V''<sup>-1</sup> [x·m<sup>-3</sup>]. In contrast, the amount-of-substance [[concentration]], ''c''<sub>B</sub> = ''n''<sub>B</sub>·''V''<sup>-1</sup> [mol·m<sup>-3</sup>] is not called a ''substance density'' ([[Cohen 2008 IUPAC Green Book |IUPAC]]). Thus the [[sample mass concentration]] is ''C<sub><u>m</u>X</sub>'' = ''m<sub>X</sub>''·''V''<sup>-1</sup> [kg·m<sup>-3</sup>], the [[mitochondrial concentration]] is ''C<sub>mtE</sub>'' = ''mtE''·''V''<sup>-1</sup> [mtEU·m<sup>-3</sup>], whereas the specific [[mitochondrial density]] is ''D<sub>mtE</sub>'' = ''mtE''·''m<sub>X</sub>''<sup>-1</sup> [mtEU·kg<sup>-1</sup>], and the [[mitochondrial content]] per object ''X'' is ''mtE<sub><u>N</u>X</sub>'' = ''mtE''·''N<sub>X</sub>''<sup>-1</sup> [mtEU·x<sup>-1</sup>] ([[BEC 2020.1]]).
|info=[[Gnaiger 2019 MitoFit Preprint Arch]], [[Cohen 2008 IUPAC Green Book]]
+
|info=[[BEC 2020.1]], [[Cohen 2008 IUPAC Green Book]]
 
}}
 
}}
 
{{MitoPedia concepts
 
{{MitoPedia concepts
 
|mitopedia concept=Ergodynamics
 
|mitopedia concept=Ergodynamics
 
}}
 
}}

Revision as of 12:53, 23 May 2020

Bioblasts - Richard Altmann and MiPArt by Odra Noel
MitoPedia         Terms and abbreviations         Concepts and methods         MitoPedia: SUIT         MiP and biochemistry         Preprints and history



MitoPedia

Density

Description

Density is frequently a quantity divided by volume: mass density or mass concentration is mass per volume, M·V-1 [kg·m-3]; radiant energy density is radiant energy per volume, Q·V-1 [J·m-3]; charge density is charge per volume, Q·V-1 [C·m-3]. However, electric current density is current divided by area, j=I·A-1 [C·m-2]. Number density of entities or number concentration is numbers per volume, CB = NB·V-1 [x·m-3]. In contrast, the amount-of-substance concentration, cB = nB·V-1 [mol·m-3] is not called a substance density (IUPAC). Thus the sample mass concentration is CmX = mX·V-1 [kg·m-3], the mitochondrial concentration is CmtE = mtE·V-1 [mtEU·m-3], whereas the specific mitochondrial density is DmtE = mtE·mX-1 [mtEU·kg-1], and the mitochondrial content per object X is mtENX = mtE·NX-1 [mtEU·x-1] (BEC 2020.1).

Abbreviation: ρ, C, D

Reference: BEC 2020.1, Cohen 2008 IUPAC Green Book


MitoPedia concepts: Ergodynamics