# equation

(redirected from Arrhenius equation)
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## e·qua·tion

(ĭ-kwā′zhən, -shən)
n.
1. The act or process of equating or of being equated.
2. The state of being equal.
3. Mathematics A statement asserting the equality of two expressions, usually written as a linear array of symbols that are separated into left and right sides and joined by an equal sign.
4. Chemistry A representation of a chemical reaction, usually written as a linear array in which the symbols and quantities of the reactants are separated from those of the products by an arrow or a set of opposing arrows.
5. A complex of variable elements or factors: "The world was full of equations ... there must be an answer for everything, if only you knew how to set forth the questions" (Anne Tyler).

## equation

(ɪˈkweɪʒən; -ʃən)
n
1. (Mathematics) a mathematical statement that two expressions are equal: it is either an identity in which the variables can assume any value, or a conditional equation in which the variables have only certain values (roots)
2. the act of regarding as equal; equating
3. the act of making equal or balanced; equalization
4. a situation, esp one regarded as having a number of conflicting elements: what you want doesn't come into the equation.
5. the state of being equal, equivalent, or equally balanced
6. a situation or problem in which a number of factors need to be considered
7. (Chemistry) See chemical equation
8. astronomy See personal equation

## e•qua•tion

(ɪˈkweɪ ʒən, -ʃən)

n.
1. the act of equating or making equal.
2. the state of being equated or equal.
3. equally balanced state; equilibrium.
4. an expression or a proposition, often algebraic, asserting the equality of two quantities.
5. a symbolic representation in chemistry showing the kind and amount of the starting materials and products of a reaction.
[1350–1400; Middle English < Latin]

## e·qua·tion

(ĭ-kwā′zhən)
1. Mathematics A written statement indicating the equality of two expressions. It consists of a sequence of symbols that is split into left and right sides joined by an equal sign. For example, 2 + 3 + 5 = 10 is an equation.
2. Chemistry A written representation of a chemical reaction, in which the symbols and amounts of the reactants are separated from those of the products by an equal sign, arrow, or a set of opposing arrows. For example, NaOH + HCl = NaCl + H2O is an equation.
ThesaurusAntonymsRelated WordsSynonymsLegend:
 Noun 1 equation - a mathematical statement that two expressions are equalmath, mathematics, maths - a science (or group of related sciences) dealing with the logic of quantity and shape and arrangementregression equation, regression of y on x - the equation representing the relation between selected values of one variable (x) and observed values of the other (y); it permits the prediction of the most probable values of ylinear equation - a polynomial equation of the first degreequadratic, quadratic equation - an equation in which the highest power of an unknown quantity is a squarebiquadratic equation, biquadratic - an equation of the fourth degreedifferential equation - an equation containing differentials of a functionsimultaneous equations - a set of equations in two or more variables for which there are values that can satisfy all the equations simultaneouslymathematical statement - a statement of a mathematical relationexponential equation - an equation involving exponential functions of a variable 2 equation - a state of being essentially equal or equivalent; equally balanced; "on a par with the best"status, position - the relative position or standing of things or especially persons in a society; "he had the status of a minor"; "the novel attained the status of a classic"; "atheists do not enjoy a favorable position in American life"egalite, egality - social and political equality; "egality represents an extreme leveling of society"tie - equality of score in a contest 3 equation - the act of regarding as equalequatingequalisation, equalization, leveling - the act of making equal or uniform

## equation

noun the equation between higher spending and higher taxes

## equation

noun
The state of being equivalent:
Translations
مُعادَلةمُعادَلَه
rovnice
ligningregnestykke
yhtälö
egyenletkiegyenlítés
jafnaefnajafna

방정식
rovnica
enačba
ekvation
สมการ
phương trình

## equation

[ɪˈkweɪʒən] N
1. (Math) →
to enter (into) the equation (fig) →
fairness did not seem to enter into the equation
2. (= linking) the equation of sth with sthla identificación de algo con algo

[ɪˈkweɪʒən] n

## equation

n (Math, fig) → Gleichung f; the equation of religion and moralitydie Gleichsetzung von Religion mit Moralität; to balance the equation between work and leisure; that doesn’t even enter the equation

## equation

[ɪˈkweɪʒn] n (Math) →
equations of motion (Phys) →

## equate

(iˈkweit) verb
to regard as the same in some way. He equates money with happiness.
eˈquation (-ʒən) noun
1. a statement that two things are equal or the same. xy+xy=2xy is an equation.
2. a formula expressing the action of certain substances on others. 2H2 + O2 = 2 H2O is an equation.

## equation

rovnice ligning yhtälö jednadžba 等しくすること 방정식 ekvation สมการ phương trình
References in periodicals archive ?
The activation energy for the grain growth of the Ti[O.sub.2] nanofibers was calculated by the Arrhenius equation, based on the XRD results.
Third, the preexponential factors and activation energies are obtained by plotting the logarithm of the rate constants (k) versus 1/T of absolute temperature using the Arrhenius equation and in the final stage thermodynamic parameters were obtained such as [DELTA]S and [DELTA]H.
The parabolic rate constants obey the Arrhenius equation
Diffusion coefficients were determined from the weight change data and an activation energy was obtained via Arrhenius equation. Changes in yellowness, as an example, and signature of chemical degradation, indicated that the cycling period in accelerated weathering may affect the degradation via the amount and distribution of moisture in coatings.
This type of failure is best modeled as a first order kinetic reaction, typically described as an Arrhenius Equation, which is proportional to the inverse log of the temperature.
The temperature in the unburnt zone is assumed to be homogenous and the global reaction rate as well as the ignition delay [tau] can be described by the Arrhenius equation [20]:
According to the Arrhenius equation, the plots of ln [sigma] against (1 IT) should be linear in nature.
The effect of T on the kinematic viscosity of liquid is described by means of the Arrhenius equation (1) which describes the exponential decrease of kinematic viscosity versus T [8,9,10]:
The reaction rate/temperature relationship can be represented by the Arrhenius equation:
If the reaction follows the Arrhenius equation, the plot of logarithm of rate constant ln k against the reciprocal of temperature 1/T should be a line; then [E.sub.a] can be gotten from the slope and A can be gotten from the intercept of this line.
This shows Arrhenius equation is valid for this reaction.

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