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Rate Constant for First Step First Order Reaction is defined as the constant of proportionality for first step reaction in two steps first order irreversible reaction in series. Check FAQs
kI=(1Δt)ln(CA0Ck0)
kI - Rate Constant for First Step First Order Reaction?Δt - Time Interval for Multiple Reactions?CA0 - Initial Reactant Concentration for Multiple Rxns?Ck0 - Reactant Concentration for Zero Order Series Rxn?

Rate Constant for First Order Reaction in First Order followed by Zero Order Reaction Example

With values
With units
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Here is how the Rate Constant for First Order Reaction in First Order followed by Zero Order Reaction equation looks like with Values.

Here is how the Rate Constant for First Order Reaction in First Order followed by Zero Order Reaction equation looks like with Units.

Here is how the Rate Constant for First Order Reaction in First Order followed by Zero Order Reaction equation looks like.

0.4013Edit=(13Edit)ln(80Edit24Edit)
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Rate Constant for First Order Reaction in First Order followed by Zero Order Reaction Solution

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

FIRST Step Consider the formula
kI=(1Δt)ln(CA0Ck0)
Next Step Substitute values of Variables
kI=(13s)ln(80mol/m³24mol/m³)
Next Step Prepare to Evaluate
kI=(13)ln(8024)
Next Step Evaluate
kI=0.401324268108645s⁻¹
LAST Step Rounding Answer
kI=0.4013s⁻¹

Rate Constant for First Order Reaction in First Order followed by Zero Order Reaction Formula Elements

Variables
Functions
Rate Constant for First Step First Order Reaction
Rate Constant for First Step First Order Reaction is defined as the constant of proportionality for first step reaction in two steps first order irreversible reaction in series.
Symbol: kI
Measurement: First Order Reaction Rate ConstantUnit: s⁻¹
Note: Value should be greater than 0.
Time Interval for Multiple Reactions
A Time Interval for Multiple Reactions is the amount of time required for the change from initial to the final state.
Symbol: Δt
Measurement: TimeUnit: s
Note: Value should be greater than 0.
Initial Reactant Concentration for Multiple Rxns
The Initial Reactant Concentration for Multiple Rxns refers to the amount of reactant present in the solvent before the considered process.
Symbol: CA0
Measurement: Molar ConcentrationUnit: mol/m³
Note: Value should be greater than 0.
Reactant Concentration for Zero Order Series Rxn
The Reactant Concentration for Zero Order Series Rxn refers to the amount of reactant present in the solvent at any given point of time during the process.
Symbol: Ck0
Measurement: Molar ConcentrationUnit: mol/m³
Note: Value should be greater than 0.
ln
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 Step First Order Reaction

​Go Rate Constant for First Order Reaction using Rate Constant for Zero Order Reaction
kI=(1Δt)ln(CA0CA0-(k0Δt)-CR)

Other formulas in First Order followed by Zero Order Reaction category

​Go Initial Reactant Concentration for First Order Rxn in Series for Maximum Intermediate Concentration
CA0=CR,max(kIk2)k2k2-kI
​Go Initial Reactant Concentration for First Order Rxn for MFR using Intermediate Concentration
CA0=CR(1+(kIτm))(1+(k2τm))kIτm
​Go Initial Reactant Concentration for First Order Rxn in Series for MFR using Product Concentration
CA0=CS(1+(kIτm))(1+(k2τm))kIk2(τm2)
​Go Initial Reactant Concentration for First Order Rxn in MFR at Maximum Intermediate Concentration
CA0=CR,max((((k2kI)12)+1)2)

How to Evaluate Rate Constant for First Order Reaction in First Order followed by Zero Order Reaction?

Rate Constant for First Order Reaction in First Order followed by Zero Order Reaction evaluator uses Rate Constant for First Step First Order Reaction = (1/Time Interval for Multiple Reactions)*ln(Initial Reactant Concentration for Multiple Rxns/Reactant Concentration for Zero Order Series Rxn) to evaluate the Rate Constant for First Step First Order Reaction, The Rate Constant for First Order Reaction in First Order followed by Zero Order Reaction formula is defined as the proportionality constant of a reaction which is first order but is followed by zero order reaction. Rate Constant for First Step First Order Reaction is denoted by kI symbol.

How to evaluate Rate Constant for First Order Reaction in First Order followed by Zero Order Reaction using this online evaluator? To use this online evaluator for Rate Constant for First Order Reaction in First Order followed by Zero Order Reaction, enter Time Interval for Multiple Reactions (Δt), Initial Reactant Concentration for Multiple Rxns (CA0) & Reactant Concentration for Zero Order Series Rxn (Ck0) and hit the calculate button.

FAQs on Rate Constant for First Order Reaction in First Order followed by Zero Order Reaction

What is the formula to find Rate Constant for First Order Reaction in First Order followed by Zero Order Reaction?
The formula of Rate Constant for First Order Reaction in First Order followed by Zero Order Reaction is expressed as Rate Constant for First Step First Order Reaction = (1/Time Interval for Multiple Reactions)*ln(Initial Reactant Concentration for Multiple Rxns/Reactant Concentration for Zero Order Series Rxn). Here is an example- 0.401324 = (1/3)*ln(80/24).
How to calculate Rate Constant for First Order Reaction in First Order followed by Zero Order Reaction?
With Time Interval for Multiple Reactions (Δt), Initial Reactant Concentration for Multiple Rxns (CA0) & Reactant Concentration for Zero Order Series Rxn (Ck0) we can find Rate Constant for First Order Reaction in First Order followed by Zero Order Reaction using the formula - Rate Constant for First Step First Order Reaction = (1/Time Interval for Multiple Reactions)*ln(Initial Reactant Concentration for Multiple Rxns/Reactant Concentration for Zero Order Series Rxn). This formula also uses Natural Logarithm (ln) function(s).
What are the other ways to Calculate Rate Constant for First Step First Order Reaction?
Here are the different ways to Calculate Rate Constant for First Step First Order Reaction-
  • Rate Constant for First Step First Order Reaction=(1/Time Interval for Multiple Reactions)*ln(Initial Reactant Concentration for Multiple Rxns/(Initial Reactant Concentration for Multiple Rxns-(Rate Constant for Zero Order Rxn for Multiple Rxns*Time Interval for Multiple Reactions)-Intermediate Concentration for Series Rxn))OpenImg
Can the Rate Constant for First Order Reaction in First Order followed by Zero Order Reaction be negative?
No, the Rate Constant for First Order Reaction in First Order followed by Zero Order Reaction, measured in First Order Reaction Rate Constant cannot be negative.
Which unit is used to measure Rate Constant for First Order Reaction in First Order followed by Zero Order Reaction?
Rate Constant for First Order Reaction in First Order followed by Zero Order 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 Reaction in First Order followed by Zero Order Reaction can be measured.
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