Energy per Quantum given Intensity Calculator

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✖Intensity in J per second is the power transferred per unit area, where the area is measured on the plane perpendicular to the direction of propagation of the energy.ⓘ Intensity in J per second [I]			+10% -10%
✖Intensity in number of photons is the intensity which is in terms of the number of photons which is absorbed in the time interval of 1 second.ⓘ Intensity in number of photons [I_a]			+10% -10%

✖Energy per Quantum is the energy of a molecule per quantum of radiation which is absorbed during a photochemical reaction.ⓘ Energy per Quantum given Intensity [E_Quantum]

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Formula

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Energy per Quantum given Intensity

Formula

`"E"_{"Quantum"} = "I"/"I"_{"a"}`

Example

`"0.2J"="10J/s"/"50"`

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Energy per Quantum given Intensity Solution

STEP 0: Pre-Calculation Summary

Formula Used

Energy per Quantum = Intensity in J per second/Intensity in number of photons
E_Quantum = I/I_a
This formula uses 3 Variables

Variables Used

Energy per Quantum - (Measured in Joule) - Energy per Quantum is the energy of a molecule per quantum of radiation which is absorbed during a photochemical reaction.
Intensity in J per second - (Measured in Watt) - Intensity in J per second is the power transferred per unit area, where the area is measured on the plane perpendicular to the direction of propagation of the energy.
Intensity in number of photons - Intensity in number of photons is the intensity which is in terms of the number of photons which is absorbed in the time interval of 1 second.

STEP 1: Convert Input(s) to Base Unit

Intensity in J per second: 10 Joule per Second --> 10 Watt (Check conversion here)
Intensity in number of photons: 50 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

E_Quantum = I/I_a --> 10/50

Evaluating ... ...

E_Quantum = 0.2

STEP 3: Convert Result to Output's Unit

0.2 Joule --> No Conversion Required

FINAL ANSWER

0.2 Joule <-- Energy per Quantum

(Calculation completed in 00.004 seconds)

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Created by Akshada Kulkarni

National Institute of Information Technology (NIIT), Neemrana

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Verified by Prashant Singh

K J Somaiya College of science (K J Somaiya), Mumbai

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< 18 Stark-Einstein law Calculators

Energy of Photochemical Reaction terms of Wavelength

Go Energy in Photochemical Reaction = ([Avaga-no]*[hP]*[c])/Wavelength

Wavelength given Energy of Reaction

Go Wavelength = ([Avaga-no]*[hP]*[c])/Energy in Photochemical Reaction

Number of Quanta absorbed in 1 second using Quantum Efficiency of Reactant

Go Number of Quanta Absorbed = Reactant Molecules Consumed per Second /Quantum efficiency for reactants

Number of Molecules of Reactant consumed in 1 second

Go Reactant Molecules Consumed per Second = Quantum efficiency for reactants*Number of Quanta Absorbed

Quantum Efficiency for Disappearance of Reactant

Go Quantum efficiency for reactants = Reactant Molecules Consumed per Second/Number of Quanta Absorbed

Number of Quanta absorbed in 1 second using Quantum Efficiency of Products

Go Number of Quanta Absorbed = Product Molecules Formed per Second /Quantum Efficiency for Products

Number of Molecules of Product formed in 1 second

Go Product Molecules Formed per Second = Quantum Efficiency for Products*Number of Quanta Absorbed

Quantum Efficiency for Formation of Product

Go Quantum Efficiency for Products = Product Molecules Formed per Second/Number of Quanta Absorbed

Frequency given Energy of Reaction

Go Frequency = Energy in Photochemical Reaction/[Avaga-no]*[hP]

Energy of Photochemical Reaction

Go Energy in Photochemical Reaction = [Avaga-no]*[hP]*Frequency

Intensity of Transmitted Light

Go Intensity of Transmitted Light = Intensity of incident light-Intensity of Light Absorbed

Intensity of Incident Light

Go Intensity of incident light = Intensity of Light Absorbed+Intensity of Transmitted Light

Intensity of Light Absorbed

Go Intensity of Light Absorbed = Intensity of incident light-Intensity of Transmitted Light

Intensity in J per second given Intensity terms of Photons

Go Intensity in J per second = Intensity in number of photons*Energy per Quantum

Intensity terms of Number of Photons absorbed in 1 second

Go Intensity in number of photons = Intensity in J per second/Energy per Quantum

Energy per Quantum given Intensity

Go Energy per Quantum = Intensity in J per second/Intensity in number of photons

Energy per Quantum of Radiation terms of Wavelength

Go Energy per Quantum = ([hP]*[c])/Wavelength

Energy per Quantum of Radiation Absorbed

Go Energy per Quantum = [hP]*Frequency

Energy per Quantum given Intensity Formula

Energy per Quantum = Intensity in J per second/Intensity in number of photons
E_Quantum = I/I_a

What is Stark-Einstein law of photochemical equivalence?

Stark-Einstein law of photochemical equivalence can be stated as follows:
Each molecule taking part in a photochemical reaction absorbs one quantum of radiation
which causes the reaction. This law is applicable to the primary act of excitation of a molecule by light absorption. This law helps in calculating the quantum efficiency which is a measure of the efficiency of the use of light in a photochemical reaction.

What is Grotthuss-Draper Law?

According to this law, only the light that is absorbed by a molecule can produce a
photochemical change in it. This means that it is not sufficient to pass light through a
substance to bring about a chemical reaction; but the light must be absorbed by it.
Stark-Einstein law of photochemical equivalence provides a quantum mechanical form to
Grotthuss-Draper law.

How to Calculate Energy per Quantum given Intensity?

Energy per Quantum given Intensity calculator uses Energy per Quantum = Intensity in J per second/Intensity in number of photons to calculate the Energy per Quantum, The Energy per quantum given intensity formula is defined as the energy of a molecule per quantum of radiation that is absorbed during a photochemical reaction. Energy per Quantum is denoted by E_Quantum symbol.

How to calculate Energy per Quantum given Intensity using this online calculator? To use this online calculator for Energy per Quantum given Intensity, enter Intensity in J per second (I) & Intensity in number of photons (I_a) and hit the calculate button. Here is how the Energy per Quantum given Intensity calculation can be explained with given input values -> 0.2 = 10/50.

FAQ

What is Energy per Quantum given Intensity?

The Energy per quantum given intensity formula is defined as the energy of a molecule per quantum of radiation that is absorbed during a photochemical reaction and is represented as E_Quantum = I/I_a or Energy per Quantum = Intensity in J per second/Intensity in number of photons. Intensity in J per second is the power transferred per unit area, where the area is measured on the plane perpendicular to the direction of propagation of the energy & Intensity in number of photons is the intensity which is in terms of the number of photons which is absorbed in the time interval of 1 second.

How to calculate Energy per Quantum given Intensity?

The Energy per quantum given intensity formula is defined as the energy of a molecule per quantum of radiation that is absorbed during a photochemical reaction is calculated using Energy per Quantum = Intensity in J per second/Intensity in number of photons. To calculate Energy per Quantum given Intensity, you need Intensity in J per second (I) & Intensity in number of photons (I_a). With our tool, you need to enter the respective value for Intensity in J per second & Intensity in number of photons and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Energy per Quantum?

In this formula, Energy per Quantum uses Intensity in J per second & Intensity in number of photons. We can use 2 other way(s) to calculate the same, which is/are as follows -

Energy per Quantum = [hP]*Frequency
Energy per Quantum = ([hP]*[c])/Wavelength

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