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Rate of Deactivation Formula

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Rate of Deactivation is the rate of change of chemical conversion (X) with time on stream (t) with the instantaneous value of dX/dt being the numerical value of deactivation rate. Check FAQs

R Deactivation = (K NR + K f) \cdot [M S1]

R_Deactivation - Rate of Deactivation?K_NR - Rate Constant of Non Radiative Reaction?K_f - Rate Constant of Fluoroscence?[M_S1] - Singlet State Concentration?

Rate of Deactivation Example

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Here is how the Rate of Deactivation equation looks like with Values.

Here is how the Rate of Deactivation equation looks like with Units.

Here is how the Rate of Deactivation equation looks like.

0.0157 = (35 + 750) \cdot 2E-5

0.0157mol/L*s = (35rev/s + 750rev/s) \cdot 2E-5mol/L

0.0157 = (35 + 750) \cdot 2E-5

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Rate of Deactivation Solution

Follow our step by step solution on how to calculate Rate of Deactivation?

FIRST Step Consider the formula

R Deactivation = (K NR + K f) \cdot [M S1]

Next Step Substitute values of Variables

∴

R Deactivation = (35rev/s + 750rev/s) \cdot 2E-5mol/L

Next Step Convert Units

∴

R Deactivation = (35Hz + 750Hz) \cdot 0.02mol/m³

Next Step Prepare to Evaluate

∴

R Deactivation = (35 + 750) \cdot 0.02

Next Step Evaluate

∴

R Deactivation = 15.7mol/m³*s

LAST Step Convert to Output's Unit

∴

R Deactivation = 0.0157mol/L*s

Rate of Deactivation Formula Elements

Variables

Rate of Deactivation

Rate of Deactivation is the rate of change of chemical conversion (X) with time on stream (t) with the instantaneous value of dX/dt being the numerical value of deactivation rate.

Symbol: R_Deactivation

Measurement: Reaction RateUnit: mol/L*s

Note: Value can be positive or negative.

Formulas to find Rate of Deactivation

Rate Constant of Non Radiative Reaction

Rate Constant of Non Radiative Reaction is defined as the rate at which deactivation occurs in the form of heat energy.

Symbol: K_NR

Measurement: FrequencyUnit: rev/s

Note: Value can be positive or negative.

Formulas to find Rate Constant of Non Radiative Reaction

Rate Constant of Fluoroscence

Rate Constant of Fluoroscence is the rate at which spontaneous emission occurs.

Symbol: K_f

Measurement: FrequencyUnit: rev/s

Note: Value can be positive or negative.

Formulas to find Rate Constant of Fluoroscence

Singlet State Concentration

Singlet State Concentration is the number of molecules present in the singlet excited state.

Symbol: [M_S1]

Measurement: Molar ConcentrationUnit: mol/L

Note: Value can be positive or negative.

Formulas to find Singlet State Concentration

Other formulas in Emission Spectroscopy category

Go Collisional Energy Transfer

R collision = K q \cdot [Q] \cdot [M S1]

Go Degree of Exciplex Formation

α = \frac{K eq \cdot [Q]}{1 + (K eq \cdot [Q])}

Go Difference in Acidity between Ground and Excited State

Δpka = pKa Excited - pKa ground

Go Equilibrium Constant for Exciplex Formation

K eq = \frac{1}{1 - α} - 1

How to Evaluate Rate of Deactivation?

Rate of Deactivation evaluator uses Rate of Deactivation = (Rate Constant of Non Radiative Reaction+Rate Constant of Fluoroscence)*Singlet State Concentration to evaluate the Rate of Deactivation, Rate of Deactivation is the rate of change of chemical conversion (X) with time on stream (t) with the instantaneous value of dX/dt being the numerical value of deactivation rate. It is a non radiative process of de excitation of particles from excited to ground state. Rate of Deactivation is denoted by R_Deactivation symbol.

How to evaluate Rate of Deactivation using this online evaluator? To use this online evaluator for Rate of Deactivation, enter Rate Constant of Non Radiative Reaction (K_NR), Rate Constant of Fluoroscence (K_f) & Singlet State Concentration ([M_S1]) and hit the calculate button.

FAQs on Rate of Deactivation

What is the formula to find Rate of Deactivation?

The formula of Rate of Deactivation is expressed as Rate of Deactivation = (Rate Constant of Non Radiative Reaction+Rate Constant of Fluoroscence)*Singlet State Concentration. Here is an example- 1.6E-5 = (35+750)*0.02.

How to calculate Rate of Deactivation?

With Rate Constant of Non Radiative Reaction (K_NR), Rate Constant of Fluoroscence (K_f) & Singlet State Concentration ([M_S1]) we can find Rate of Deactivation using the formula - Rate of Deactivation = (Rate Constant of Non Radiative Reaction+Rate Constant of Fluoroscence)*Singlet State Concentration.

Can the Rate of Deactivation be negative?

Yes, the Rate of Deactivation, measured in Reaction Rate can be negative.

Which unit is used to measure Rate of Deactivation?

Rate of Deactivation is usually measured using the Mole per Liter Second[mol/L*s] for Reaction Rate. Millimole per Liter Second[mol/L*s], Mole per Cubic Meter Second[mol/L*s] are the few other units in which Rate of Deactivation can be measured.

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Rate of Deactivation Formula

Rate of Deactivation Example

Rate of Deactivation Solution

Rate of Deactivation Formula Elements

Other formulas in Emission Spectroscopy category

How to Evaluate Rate of Deactivation?

FAQs on Rate of Deactivation

Variable Name