Ap su?t rieng ph?n

Trong m?t h?n h?p cac ch?t khi , m?i khi co m?t ap su?t rieng ph?n hay ap su?t t?ng ph?n la ap su?t c?a khi đo n?u gi? thi?t r?ng m?t minh no chi?m toan b? th? tich c?a h?n h?p ban đ?u ? cung m?t nhi?t đ? . ^[1] Ap su?t t?ng c?a m?t h?n h?p khi ly t??ng la t?ng c?a cac ap su?t rieng ph?n c?a nh?ng khi trong h?n h?p.

No d?a tren quan h? đ?ng nhi?t sau: ${\frac {V_{x}}{V_{tot}}}={\frac {p_{x}}{p_{tot}}}={\frac {n_{x}}{n_{tot}}}$

V _x la th? tich rieng ph?n c?a t?ng khi c?u thanh rieng l? (X)
V _tot la t?ng th? tich c?a h?n h?p khi
p _x la ap su?t rieng ph?n c?a khi X
p _tot la ap su?t t?ng c?a h?n h?p khi
n _x la l??ng ch?t c?a khi (X)
n _tot la t?ng l??ng ch?t c?a h?n h?p khi

Ap su?t rieng ph?n c?a m?t khi la m?t tieu chu?n đ? đo đ? ho?t đ?ng nhi?t đ?ng h?c c?a cac phan t? khi. Cac phan t? khi hoa tan, khu?ch tan, va ph?n ?ng theo ap su?t rieng ph?n, va khong ph? thu?c vao n?ng đ? c?a chung trong h?n h?p khi ho?c ch?t l?ng.

Ky hi?u [ s?a | s?a ma ngu?n ]

Ky hi?u c?a ap su?t th??ng la P ho?c p , co th? s? d?ng them ch? nh? ? d??i đ? xac đ?nh ap su?t, va cac lo?i khi c?ng đ??c ch? ro ? ch? d??i. ^[2]^[3]

Vi d?:

{P_{1}}

ho?c

{p_{1}}

= a?p su?t t?i th?i đi?m 1

{P_{H_{2}}}

ho?c

{p_{H_{2}}}

= ap su?t rieng ph?n c?a hydro

{P_{v_{O_{2}}}}

ho?c

{p_{v_{O_{2}}}}

= ap su?t rieng ph?n c?a oxi trong t?nh m?ch

đ?nh lu?t Dalton v? ap su?t rieng ph?n [ s?a | s?a ma ngu?n ]

đ?nh lu?t Dalton phat bi?u r?ng ap su?t t?ng c?a m?t h?n h?p khi b?ng t?ng c?a cac ap su?t rieng ph?n c?a t?ng khi rieng l? trong h?n h?p. ^[4] Ph??ng trinh nay b?t ngu?n t? c? s? l?p lu?n cho r?ng trong khi ly t??ng cac phan t? cach xa nhau nen ch?ng khong t??ng tac v?i nhau. H?u h?t cac khi trong th?c t? c?ng kha t??ng t? ? đi?u ki?n ly t??ng. Vi d?, cho m?t h?n h?p khi g?m nit? (N ₂), hydro (H ₂) va amonia (NH ₃):

p=p_{{\ce {N2}}}+p_{{\ce {H2}}}+p_{{\ce {NH3}}}

trong đo:
$p\,$	= ap su?t t?ng c?a h?n h?p khi
$p_{{\ce {N2}}}$	= ap su?t rieng ph?n c?a nit? (N ₂)
$p_{{\ce {H2}}}$	= ap su?t rieng ph?n c?a hydro (H ₂)
$p_{{\ce {NH3}}}$	= ap su?t rieng ph?n c?a amonia (NH ₃)

Trong y t? [ s?a | s?a ma ngu?n ]

Cac ap su?t rieng ph?n c?a oxy ( $p_{{\mathrm {O} }_{2}}$ ) va cacbon dioxide ( $p_{{\mathrm {CO} }_{2}}$ ) la nh?ng thong s? r?t quan trong trong vi?c đo l??ng khi mau đ?ng m?ch , nh?ng c?ng co th? đ??c đo trong, vi d? nh? d?ch t?y nao .

Ph?m vi tham chi?u cho $p_{{\mathrm {O} }_{2}}$ va $p_{{\mathrm {CO} }_{2}}$
	đ?n v?	Khi mau đ?ng m?ch	Khi mau t?nh m?ch	D?ch t?y nao	Ap su?t khi ph?i trong ph? nang
$p_{{\mathrm {O} }_{2}}$	kPa	11?13 ^[5]	4.0?5.3 ^[5]	5.3?5.9 ^[5]	14.2
$p_{{\mathrm {O} }_{2}}$	mmHg	75?100 ^[6]	30?40 ^[7]	40?44 ^[8]	107
$p_{{\mathrm {CO} }_{2}}$	kPa	4.7?6.0 ^[5]	5.5?6.8 ^[5]	5.9?6.7 ^[5]	4.8
$p_{{\mathrm {CO} }_{2}}$	mmHg	35?45 ^[6]	41?51 ^[7]	44?50 ^[8]	36

Chu thich [ s?a | s?a ma ngu?n ]

^ Charles Henrickson (2005). Chemistry . Cliffs Notes. ISBN 0-7645-7419-1 .
^ Staff. “Symbols and Units” (PDF) . Respiratory Physiology & Neurobiology: Guide for Authors . Elsevier. tr. 1 . Truy c?p ngay 3 thang 6 n?m 2017 . All symbols referring to gas species are in subscript,
^ IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997). XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic, J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8 . https://doi.org/10.1351/goldbook . Last update: 2014-02-24; version: 2.3.3. DOI of this term: https://doi.org/10.1351/goldbook.P04819 .
^ “Dalton's Law of Partial Pressures” . B?n g?c l?u tr? ngay 1 thang 2 n?m 2017 . Truy c?p ngay 4 thang 12 n?m 2017 .
^ ^a ^b ^c ^d ^e ^f Derived from mmHg values using 0.133322 kPa/mmHg
^ ^a ^b Normal Reference Range Table L?u tr? 2011-12-25 t?i Wayback Machine from The University of Texas Southwestern Medical Center at Dallas. Used in Interactive Case Study Companion to Pathologic basis of disease.
^ ^a ^b The Medical Education Division of the Brookside Associates--> ABG (Arterial Blood Gas) Retrieved on Dec 6, 2009
^ ^a ^b PATHOLOGY 425 CEREBROSPINAL FLUID [CSF] L?u tr? 2012-02-22 t?i Wayback Machine at the Department of Pathology and Laboratory Medicine at the University of British Columbia. By Dr. G.P. Bondy. Truy c?p November 2011

[1] Charles Henrickson (2005). Chemistry . Cliffs Notes. ISBN 0-7645-7419-1 .

[Elsevier_guide-2] Staff. “Symbols and Units” (PDF) . Respiratory Physiology & Neurobiology: Guide for Authors . Elsevier. tr. 1 . Truy c?p ngay 3 thang 6 n?m 2017 . All symbols referring to gas species are in subscript,

[3] IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997). XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic, J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8 . https://doi.org/10.1351/goldbook . Last update: 2014-02-24; version: 2.3.3. DOI of this term: https://doi.org/10.1351/goldbook.P04819 .

[4] “Dalton's Law of Partial Pressures” . B?n g?c l?u tr? ngay 1 thang 2 n?m 2017 . Truy c?p ngay 4 thang 12 n?m 2017 .

[mmHg-5] ^ ^a ^b ^c ^d ^e ^f Derived from mmHg values using 0.133322 kPa/mmHg

[southwest-6] Normal Reference Range Table L?u tr? 2011-12-25 t?i Wayback Machine from The University of Texas Southwestern Medical Center at Dallas. Used in Interactive Case Study Companion to Pathologic basis of disease.

[brookside-7] The Medical Education Division of the Brookside Associates--> ABG (Arterial Blood Gas) Retrieved on Dec 6, 2009

[UBC-8] PATHOLOGY 425 CEREBROSPINAL FLUID [CSF] L?u tr? 2012-02-22 t?i Wayback Machine at the Department of Pathology and Laboratory Medicine at the University of British Columbia. By Dr. G.P. Bondy. Truy c?p November 2011

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