FormulaDen.com

Physics Chemistry Math Chemical Engineering Civil Electrical Electronics Electronics and Instrumentation Materials Science Mechanical Production Engineering Financial Health

Rate Constant for First Order Irreversible Reaction Formula

GoRate Constant for First Order Irreversible Reaction using log10 Formula

Fx Copy

LaTeX Copy

The Rate Constant for First Order Reaction is defined as the rate of the reaction divided by the concentration of the reactant. Check FAQs

K 1st order = - \frac{\ln (1 - X A)}{t}

K_{1st order} - Rate Constant for First Order Reaction?X_A - Reactant Conversion?t - Reaction Time?

Rate Constant for First Order Irreversible Reaction Example

With values

With units

Only example

Here is how the Rate Constant for First Order Irreversible Reaction equation looks like with Values.

Here is how the Rate Constant for First Order Irreversible Reaction equation looks like with Units.

Here is how the Rate Constant for First Order Irreversible Reaction equation looks like.

0.2235 = - \frac{\ln (1 - 0.8)}{7.2}

0.2235s⁻¹ = - \frac{\ln (1 - 0.8)}{7.2s}

0.2235 = - \frac{\ln (1 - 0.8)}{7.2}

Tip: Use pencil ( Pencil

) icon above to edit Input Values and Units.

Calculate

Recalculate

Solution

Copy

Reset

You are here -

Home » Category

Engineering » Category

Chemical Engineering » Category

Chemical Reaction Engineering » fx Rate Constant for First Order Irreversible Reaction

Rate Constant for First Order Irreversible Reaction Solution

Follow our step by step solution on how to calculate Rate Constant for First Order Irreversible Reaction?

FIRST Step Consider the formula

K 1st order = - \frac{\ln (1 - X A)}{t}

Next Step Substitute values of Variables

∴

K 1st order = - \frac{\ln (1 - 0.8)}{7.2s}

Next Step Prepare to Evaluate

∴

K 1st order = - \frac{\ln (1 - 0.8)}{7.2}

Next Step Evaluate

∴

K 1st order = 0.223533043393625s⁻¹

LAST Step Rounding Answer

∴

K 1st order = 0.2235s⁻¹

Rate Constant for First Order Irreversible Reaction Formula Elements

Variables

Functions

Rate Constant for First Order Reaction

The Rate Constant for First Order Reaction is defined as the rate of the reaction divided by the concentration of the reactant.

Symbol: K_{1st order}

Measurement: First Order Reaction Rate ConstantUnit: s⁻¹

Note: Value should be greater than 0.

Formulas to find Rate Constant for First Order Reaction

Reactant Conversion

Reactant Conversion gives us the percentage of reactants converted into products. Enter the percentage as a decimal between 0 and 1.

Symbol: X_A

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Reactant Conversion

Reaction Time

Reaction Time is the time taken to complete a reaction to a certain extent.

Symbol: t

Measurement: TimeUnit: s

Note: Value should be greater than 0.

Formulas to find Reaction Time

The natural logarithm, also known as the logarithm to the base e, is the inverse function of the natural exponential function.

Syntax: ln(Number)

Other Formulas to find Rate Constant for First Order Reaction

Go Rate Constant for First Order Irreversible Reaction using log10

K 1st order = - 2.303 \cdot \frac{\log 10 (1 - X A)}{t}

Other formulas in First Order Irreversible Reaction category

Go Reaction Time for First Order Irreversible Reaction

t = - \frac{\ln (1 - X A)}{K 1st order}

Go Reaction Time for First Order Irreversible Reaction using log10

t = - 2.303 \cdot \frac{\log 10 (1 - X A)}{K 1st order}

Go Rate Constant of Second Order Irreversible Reaction

k 2 = \frac{r}{C A \cdot C B}

Go Rate Constant of Second Order Irreversible Reaction with Equal Reactant Concentrations

k 2 = \frac{r}{{(C A)}^{2}}

How to Evaluate Rate Constant for First Order Irreversible Reaction?

Rate Constant for First Order Irreversible Reaction evaluator uses Rate Constant for First Order Reaction = -(ln(1-Reactant Conversion))/Reaction Time to evaluate the Rate Constant for First Order Reaction, Rate Constant for First Order Irreversible Reaction is defined as the rate of conversion of reactants into products. Rate Constant for First Order Reaction is denoted by K_{1st order} symbol.

How to evaluate Rate Constant for First Order Irreversible Reaction using this online evaluator? To use this online evaluator for Rate Constant for First Order Irreversible Reaction, enter Reactant Conversion (X_A) & Reaction Time (t) and hit the calculate button.

FAQs on Rate Constant for First Order Irreversible Reaction

What is the formula to find Rate Constant for First Order Irreversible Reaction?

The formula of Rate Constant for First Order Irreversible Reaction is expressed as Rate Constant for First Order Reaction = -(ln(1-Reactant Conversion))/Reaction Time. Here is an example- 0.223533 = -(ln(1-0.8))/7.2.

How to calculate Rate Constant for First Order Irreversible Reaction?

With Reactant Conversion (X_A) & Reaction Time (t) we can find Rate Constant for First Order Irreversible Reaction using the formula - Rate Constant for First Order Reaction = -(ln(1-Reactant Conversion))/Reaction Time. This formula also uses Natural Logarithm (ln) function(s).

What are the other ways to Calculate Rate Constant for First Order Reaction?

Here are the different ways to Calculate Rate Constant for First Order Reaction-

Rate Constant for First Order Reaction=-2.303*(log10(1-Reactant Conversion))/Reaction Time

Can the Rate Constant for First Order Irreversible Reaction be negative?

No, the Rate Constant for First Order Irreversible Reaction, measured in First Order Reaction Rate Constant cannot be negative.

Which unit is used to measure Rate Constant for First Order Irreversible Reaction?

Rate Constant for First Order Irreversible Reaction is usually measured using the 1 Per Second[s⁻¹] for First Order Reaction Rate Constant. 1 Per Millisecond[s⁻¹], 1 Per Day[s⁻¹], 1 Per Hour[s⁻¹] are the few other units in which Rate Constant for First Order Irreversible Reaction can be measured.

Let Others Know

✖

Facebook

Twitter

Copied!

: Value
: Unit

Rate Constant for First Order Irreversible Reaction Formula

​GoRate Constant for First Order Irreversible Reaction using log10 Formula

Rate Constant for First Order Irreversible Reaction Example

Rate Constant for First Order Irreversible Reaction Solution

Rate Constant for First Order Irreversible Reaction Formula Elements

Other Formulas to find Rate Constant for First Order Reaction

Other formulas in First Order Irreversible Reaction category

How to Evaluate Rate Constant for First Order Irreversible Reaction?

FAQs on Rate Constant for First Order Irreversible Reaction

Variable Name

GoRate Constant for First Order Irreversible Reaction using log10 Formula