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The Rate Constant for First Order Reaction is defined as the rate of the reaction divided by the concentration of the reactant. Check FAQs
K1st order=-2.303log10(1-XA)t
K1st order - Rate Constant for First Order Reaction?XA - Reactant Conversion?t - Reaction Time?

Rate Constant for First Order Irreversible Reaction using log10 Example

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With units
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Here is how the Rate Constant for First Order Irreversible Reaction using log10 equation looks like with Values.

Here is how the Rate Constant for First Order Irreversible Reaction using log10 equation looks like with Units.

Here is how the Rate Constant for First Order Irreversible Reaction using log10 equation looks like.

0.2236Edit=-2.303log10(1-0.8Edit)7.2Edit
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Rate Constant for First Order Irreversible Reaction using log10 Solution

Follow our step by step solution on how to calculate Rate Constant for First Order Irreversible Reaction using log10?

FIRST Step Consider the formula
K1st order=-2.303log10(1-XA)t
Next Step Substitute values of Variables
K1st order=-2.303log10(1-0.8)7.2s
Next Step Prepare to Evaluate
K1st order=-2.303log10(1-0.8)7.2
Next Step Evaluate
K1st order=0.223573322220257s⁻¹
LAST Step Rounding Answer
K1st order=0.2236s⁻¹

Rate Constant for First Order Irreversible Reaction using log10 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: K1st order
Measurement: First Order Reaction Rate ConstantUnit: s⁻¹
Note: Value should be greater than 0.
Reactant Conversion
Reactant Conversion gives us the percentage of reactants converted into products. Enter the percentage as a decimal between 0 and 1.
Symbol: XA
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
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.
log10
The common logarithm, also known as the base-10 logarithm or the decimal logarithm, is a mathematical function that is the inverse of the exponential function.
Syntax: log10(Number)

Other Formulas to find Rate Constant for First Order Reaction

​Go Rate Constant for First Order Irreversible Reaction
K1st order=-ln(1-XA)t

Other formulas in First Order Irreversible Reaction category

​Go Reaction Time for First Order Irreversible Reaction
t=-ln(1-XA)K1st order
​Go Reaction Time for First Order Irreversible Reaction using log10
t=-2.303log10(1-XA)K1st order
​Go Rate Constant of Second Order Irreversible Reaction
k2=rCACB
​Go Rate Constant of Second Order Irreversible Reaction with Equal Reactant Concentrations
k2=r(CA)2

How to Evaluate Rate Constant for First Order Irreversible Reaction using log10?

Rate Constant for First Order Irreversible Reaction using log10 evaluator uses Rate Constant for First Order Reaction = -2.303*(log10(1-Reactant Conversion))/Reaction Time to evaluate the Rate Constant for First Order Reaction, The Rate Constant for First Order Irreversible Reaction using log10 formula is defined as the rate of conversion of reactants into products. Rate Constant for First Order Reaction is denoted by K1st order symbol.

How to evaluate Rate Constant for First Order Irreversible Reaction using log10 using this online evaluator? To use this online evaluator for Rate Constant for First Order Irreversible Reaction using log10, enter Reactant Conversion (XA) & Reaction Time (t) and hit the calculate button.

FAQs on Rate Constant for First Order Irreversible Reaction using log10

What is the formula to find Rate Constant for First Order Irreversible Reaction using log10?
The formula of Rate Constant for First Order Irreversible Reaction using log10 is expressed as Rate Constant for First Order Reaction = -2.303*(log10(1-Reactant Conversion))/Reaction Time. Here is an example- 0.223573 = -2.303*(log10(1-0.8))/7.2.
How to calculate Rate Constant for First Order Irreversible Reaction using log10?
With Reactant Conversion (XA) & Reaction Time (t) we can find Rate Constant for First Order Irreversible Reaction using log10 using the formula - Rate Constant for First Order Reaction = -2.303*(log10(1-Reactant Conversion))/Reaction Time. This formula also uses Common Logarithm (log10) 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=-(ln(1-Reactant Conversion))/Reaction TimeOpenImg
Can the Rate Constant for First Order Irreversible Reaction using log10 be negative?
No, the Rate Constant for First Order Irreversible Reaction using log10, measured in First Order Reaction Rate Constant cannot be negative.
Which unit is used to measure Rate Constant for First Order Irreversible Reaction using log10?
Rate Constant for First Order Irreversible Reaction using log10 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 using log10 can be measured.
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