ЧТО ОЗНАЧАЕТ СЛОВО AMOUNT OF SUBSTANCE
Количество вещества
Количество вещества - это определяемая по стандарту величина, которая измеряет размер ансамбля элементарных объектов, таких как атомы, молекулы, электроны и другие частицы. Это макроскопическое свойство, и его иногда называют химическим количеством. Международная система единиц определяет количество вещества, которое будет пропорционально количеству присутствующих элементарных единиц. Единицей СИ для количества вещества является моль. Он имеет знак единицы моль. Моль определяется как количество вещества, которое содержит равное количество элементарных объектов, поскольку в 12 г изотопного углерода-12 имеются атомы. Это число называется числом Авогадро и имеет значение 6.02214129 × 1023. Это числовое значение константы Авогадро, которое имеет единицу 1 / моль, и связывает молярную массу количества вещества с его массой. Количество веществ появляется в термодинамических соотношениях, таких как закон идеального газа, а также в стехиометрических соотношениях между реагирующими молекулами, как и в законах кратных пропорций. Единственной другой единицей количества используемого вещества в настоящее время является фунт-моль с символом lb-mol, который иногда используется в химической инженерии в Соединенных Штатах.
Значение слова amount of substance в словаре английский языка
Определение количества вещества в словаре является мерой количества сущностей, присутствующих в веществе, выраженных в родинках.
КНИГИ НА АНГЛИЙСКИЙ ЯЗЫКЕ, ИМЕЮЩЕЕ ОТНОШЕНИЕ К СЛОВУ «AMOUNT OF SUBSTANCE»
Поиск случаев использования слова
amount of substance в следующих библиографических источниках. Книги, относящиеся к слову
amount of substance, и краткие выдержки из этих книг для получения представления о контексте использования этого слова в литературе на английский языке.
1
Handbook
of Thermoprocessing Technologies: Fundamentals, ...
According to experience, the differentiation of the physical parameters "mass", "
amount of substance" and "volume" is quite difficult. All three parameters are
used for the quantitative determination of matter. The physical parameter "mass" (
DIN ...
Axel von Starck, Alfred Mühlbauer, Carl Kramer,
2005
2
Traceability in Chemical Measurement
ards cannot be dosed by amount of substance - for any dosing we need to
measure an integral quantity like mass or volume. That means the certification of
reference materials is best done in terms of concentration (mol/dm1) or amount ...
Paul De Bièvre, Helmut Günzler,
2005
3
Science Education in the 21st Century
All definitions shown in Table 4 focus on the number of entities involved and it is
this emphasis on number which makes it such a useful concept in chemical
calculations. However, that part of the definition that refers to amount of
substance is ...
4
Guide for the Use
of the International System
of Units (SI): ...
Example : The difference in temperature between the freezing point of gallium
and the triple point of water is ht = 29.7546 °C = AT = 29.7546 K. 8.6 Amount of
substance, concentration, molarity, and the like The following section discusses ...
5
Thermodynamics for Chemists, Physicists and Engineers
The amount of substance is denoted by n. If there are several chemical
components (compounds) in the system we add an index to number them, e.g.,
n1 ,n 2 ,... or nA, nB ,... . The SI base unit for the amount of substance is the mole (
mol).
Robert Hołyst, Andrzej Poniewierski,
2012
6
Guide for the Use
of the International System
of Units (SI) ...
This quantity is commonly called “mole fraction of B” but this Guide prefers the
name “amount- of-substance fraction of B,” because it does not contain the name
of the unit mole (compare kilogram fraction to mass fraction). 2. For a mixture ...
7
The Dynamics
of Heat: A Unified Approach to Thermodynamics ...
This section will describe another basic property, namely amount of substance.
Amount of substance is by no means a replacement for mass, or just a
convenient means of bookkeeping for chemists. Every physical system, be it
matter or light, ...
8
Atmospheric Effects in Space Geodesy
However, this is not possible, and the total amount of substance n is used instead
of the number of particles. This amount of substance 11 is proportional to the
number of particles N, independent of the substance, and it can be measured
with ...
Johannes Böhm, Harald Schuh,
2013
9
Metrology and Physical Constants
These two concepts—that of stoichiometry and that of a thermodynamic
ensemble come together when we articulate a definition for the type of quantity
amount of substance. The only published definition of amount of substance [3]
originates ...
A. Di Giuseppe, E. Bava, M. Kühne,
2013
10
Amount of Substance: Avogadro Constant, Atomic Weight, Law ...
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online.
Source: Wikipedia, Books, LLC,
2010
НОВОСТИ, В КОТОРЫХ ВСТРЕЧАЕТСЯ ТЕРМИН «AMOUNT OF SUBSTANCE»
Здесь показано, как национальная и международная пресса использует термин
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