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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
k'=C i-1-CiCi𝛕i
k' - Rate Constant for First Order Reaction?C i-1 - Reactant Concentration in Vessel i-1?Ci - Reactant Concentration in Vessel i?𝛕i - Space Time for Vessel i?

Rate Constant for First Order Reaction in Vessel i Example

With values
With units
Only example

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

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

Here is how the Rate Constant for First Order Reaction in Vessel i equation looks like.

0.0148Edit=50Edit-30Edit30Edit45Edit
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Rate Constant for First Order Reaction in Vessel i Solution

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

FIRST Step Consider the formula
k'=C i-1-CiCi𝛕i
Next Step Substitute values of Variables
k'=50mol/m³-30mol/m³30mol/m³45s
Next Step Prepare to Evaluate
k'=50-303045
Next Step Evaluate
k'=0.0148148148148148s⁻¹
LAST Step Rounding Answer
k'=0.0148s⁻¹

Rate Constant for First Order Reaction in Vessel i Formula Elements

Variables
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'
Measurement: First Order Reaction Rate ConstantUnit: s⁻¹
Note: Value can be positive or negative.
Reactant Concentration in Vessel i-1
Reactant Concentration in Vessel i-1 is the amount of reactant per solvent in Vessel i-1.
Symbol: C i-1
Measurement: Molar ConcentrationUnit: mol/m³
Note: Value can be positive or negative.
Reactant Concentration in Vessel i
Reactant Concentration in Vessel i is the amount of reactant per solvent in Vessel i.
Symbol: Ci
Measurement: Molar ConcentrationUnit: mol/m³
Note: Value can be positive or negative.
Space Time for Vessel i
Space Time for Vessel i is the time taken by the amount of fluid to either completely enter or completely exit the reactor vessel.
Symbol: 𝛕i
Measurement: TimeUnit: s
Note: Value can be positive or negative.

Other Formulas to find Rate Constant for First Order Reaction

​Go Rate Constant for First Order Reaction for Plug Flow or for Infinite Reactors
k'=(1𝛕p)ln(CoC)

Other formulas in Design for Single Reactions category

​Go Space Time for First Order Reaction for Vessel i using Volumetric Flow Rate
trC2'=Viυ
​Go Space Time for First Order Reaction for Vessel i using Molar Flow Rate
trC2'=ViCoF0
​Go Space Time for First Order Reaction for Vessel i using Reaction Rate
trC2'=Co(Xi-1-Xi)ri
​Go Reaction Rate for Vessel i using Space Time
ri=Co(Xi-1-Xi)𝛕i

How to Evaluate Rate Constant for First Order Reaction in Vessel i?

Rate Constant for First Order Reaction in Vessel i evaluator uses Rate Constant for First Order Reaction = (Reactant Concentration in Vessel i-1-Reactant Concentration in Vessel i)/(Reactant Concentration in Vessel i*Space Time for Vessel i) to evaluate the Rate Constant for First Order Reaction, The Rate Constant for First Order Reaction in Vessel i formula is defined as the constant of proportionality which gives the relation between rate for first order reaction and the first power of concentration of one of the reactants. Rate Constant for First Order Reaction is denoted by k' symbol.

How to evaluate Rate Constant for First Order Reaction in Vessel i using this online evaluator? To use this online evaluator for Rate Constant for First Order Reaction in Vessel i, enter Reactant Concentration in Vessel i-1 (C i-1), Reactant Concentration in Vessel i (Ci) & Space Time for Vessel i (𝛕i) and hit the calculate button.

FAQs on Rate Constant for First Order Reaction in Vessel i

What is the formula to find Rate Constant for First Order Reaction in Vessel i?
The formula of Rate Constant for First Order Reaction in Vessel i is expressed as Rate Constant for First Order Reaction = (Reactant Concentration in Vessel i-1-Reactant Concentration in Vessel i)/(Reactant Concentration in Vessel i*Space Time for Vessel i). Here is an example- 0.014815 = (50-30)/(30*45).
How to calculate Rate Constant for First Order Reaction in Vessel i?
With Reactant Concentration in Vessel i-1 (C i-1), Reactant Concentration in Vessel i (Ci) & Space Time for Vessel i (𝛕i) we can find Rate Constant for First Order Reaction in Vessel i using the formula - Rate Constant for First Order Reaction = (Reactant Concentration in Vessel i-1-Reactant Concentration in Vessel i)/(Reactant Concentration in Vessel i*Space Time for Vessel i).
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=(1/Space Time for Plug Flow Reactor)*ln(Initial Reactant Concentration/Reactant Concentration)OpenImg
Can the Rate Constant for First Order Reaction in Vessel i be negative?
Yes, the Rate Constant for First Order Reaction in Vessel i, measured in First Order Reaction Rate Constant can be negative.
Which unit is used to measure Rate Constant for First Order Reaction in Vessel i?
Rate Constant for First Order Reaction in Vessel i 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 Vessel i can be measured.
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