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Enthalpy of Chemical Reaction using Equilibrium Constants Calculator

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✖Equilibrium constant 2 is the value of its reaction quotient at chemical equilibrium, at absolute temperature T2.ⓘ Equilibrium constant 2 [K₂]			+10% -10%
✖Equilibrium constant 1 is the value of its reaction quotient at chemical equilibrium, at absolute temperature T1.ⓘ Equilibrium constant 1 [K₁]			+10% -10%
✖Absolute Temperature is defined as the measurement of temperature beginning at absolute zero on the Kelvin scale.ⓘ Absolute Temperature [T_abs]			+10% -10%
✖Absolute temperature 2 is the temperature of an object on a scale where 0 is taken as absolute zero.ⓘ Absolute temperature 2 [T₂]			+10% -10%

✖The Enthalpy of Reaction is the difference in enthalpy between products and reactants.ⓘ Enthalpy of Chemical Reaction using Equilibrium Constants [ΔH]

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Enthalpy of Chemical Reaction using Equilibrium Constants Solution

STEP 0: Pre-Calculation Summary

Formula Used

Enthalpy of Reaction = -(log10(Equilibrium constant 2/Equilibrium constant 1)*[R]*((Absolute Temperature*Absolute temperature 2)/(Absolute Temperature-Absolute temperature 2)))
ΔH = -(log10(K₂/K₁)*[R]*((T_abs*T₂)/(T_abs-T₂)))
This formula uses 1 Constants, 1 Functions, 5 Variables

Constants Used

[R] - Universal gas constant Value Taken As 8.31446261815324

Functions Used

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., log10(Number)

Variables Used

Enthalpy of Reaction - (Measured in Joule Per Mole) - The Enthalpy of Reaction is the difference in enthalpy between products and reactants.
Equilibrium constant 2 - Equilibrium constant 2 is the value of its reaction quotient at chemical equilibrium, at absolute temperature T2.
Equilibrium constant 1 - Equilibrium constant 1 is the value of its reaction quotient at chemical equilibrium, at absolute temperature T1.
Absolute Temperature - (Measured in Kelvin) - Absolute Temperature is defined as the measurement of temperature beginning at absolute zero on the Kelvin scale.
Absolute temperature 2 - (Measured in Kelvin) - Absolute temperature 2 is the temperature of an object on a scale where 0 is taken as absolute zero.

STEP 1: Convert Input(s) to Base Unit

Equilibrium constant 2: 0.0431 --> No Conversion Required
Equilibrium constant 1: 0.026 --> No Conversion Required
Absolute Temperature: 273.15 Kelvin --> 273.15 Kelvin No Conversion Required
Absolute temperature 2: 310 Kelvin --> 310 Kelvin No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

ΔH = -(log10(K₂/K₁)*[R]*((T_abs*T₂)/(T_abs-T₂))) --> -(log10(0.0431/0.026)*[R]*((273.15*310)/(273.15-310)))

Evaluating ... ...

ΔH = 4193.74361560332

STEP 3: Convert Result to Output's Unit

4193.74361560332 Joule Per Mole -->4.19374361560332 KiloJoule Per Mole (Check conversion here)

FINAL ANSWER

4.19374361560332 ≈ 4.193744 KiloJoule Per Mole <-- Enthalpy of Reaction

(Calculation completed in 00.004 seconds)

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< Arrhenius Equation Calculators

Pre-exponential Factor in Arrhenius Equation for Forward Reaction

LaTeX Go Forward Pre-exponential Factor = Forward reaction rate constant/exp(-(Activation Energy Forward/([R]*Absolute Temperature)))

Arrhenius Equation for Forward Reaction

LaTeX Go Forward reaction rate constant = Forward Pre-exponential Factor*exp(-(Activation Energy Forward/([R]*Absolute Temperature)))

Arrhenius Equation

LaTeX Go Rate Constant = Pre-Exponential Factor*(exp(-(Activation Energy/([R]*Absolute Temperature))))

Pre-exponential Factor in Arrhenius Equation

LaTeX Go Pre-Exponential Factor = Rate Constant/exp(-(Activation Energy/([R]*Absolute Temperature)))

Enthalpy of Chemical Reaction using Equilibrium Constants Formula

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What is equilibrium constant?

Equilibrium constant is defined as the product of concentration of products at equilibrium by the product of concentration of reactants at equilibrium. This representation is known as equilibrium law or chemical equilibrium. The thermodynamically correct equilibrium constant expression relates the activities of all of the species present in the reaction.

How to Calculate Enthalpy of Chemical Reaction using Equilibrium Constants?

Enthalpy of Chemical Reaction using Equilibrium Constants calculator uses Enthalpy of Reaction = -(log10(Equilibrium constant 2/Equilibrium constant 1)*[R]*((Absolute Temperature*Absolute temperature 2)/(Absolute Temperature-Absolute temperature 2))) to calculate the Enthalpy of Reaction, The Enthalpy of chemical reaction using equilibrium constants formula is defined as the difference in activation energy between products and reactants for forward and backward reactions at absolute temperatures T1 and T2. Enthalpy of Reaction is denoted by ΔH symbol.

How to calculate Enthalpy of Chemical Reaction using Equilibrium Constants using this online calculator? To use this online calculator for Enthalpy of Chemical Reaction using Equilibrium Constants, enter Equilibrium constant 2 (K₂), Equilibrium constant 1 (K₁), Absolute Temperature (T_abs) & Absolute temperature 2 (T₂) and hit the calculate button. Here is how the Enthalpy of Chemical Reaction using Equilibrium Constants calculation can be explained with given input values -> 0.004194 = -(log10(0.0431/0.026)*[R]*((273.15*310)/(273.15-310))).

FAQ

What is Enthalpy of Chemical Reaction using Equilibrium Constants?

The Enthalpy of chemical reaction using equilibrium constants formula is defined as the difference in activation energy between products and reactants for forward and backward reactions at absolute temperatures T1 and T2 and is represented as ΔH = -(log10(K₂/K₁)*[R]*((T_abs*T₂)/(T_abs-T₂))) or Enthalpy of Reaction = -(log10(Equilibrium constant 2/Equilibrium constant 1)*[R]*((Absolute Temperature*Absolute temperature 2)/(Absolute Temperature-Absolute temperature 2))). Equilibrium constant 2 is the value of its reaction quotient at chemical equilibrium, at absolute temperature T2, Equilibrium constant 1 is the value of its reaction quotient at chemical equilibrium, at absolute temperature T1, Absolute Temperature is defined as the measurement of temperature beginning at absolute zero on the Kelvin scale & Absolute temperature 2 is the temperature of an object on a scale where 0 is taken as absolute zero.

How to calculate Enthalpy of Chemical Reaction using Equilibrium Constants?

The Enthalpy of chemical reaction using equilibrium constants formula is defined as the difference in activation energy between products and reactants for forward and backward reactions at absolute temperatures T1 and T2 is calculated using Enthalpy of Reaction = -(log10(Equilibrium constant 2/Equilibrium constant 1)*[R]*((Absolute Temperature*Absolute temperature 2)/(Absolute Temperature-Absolute temperature 2))). To calculate Enthalpy of Chemical Reaction using Equilibrium Constants, you need Equilibrium constant 2 (K₂), Equilibrium constant 1 (K₁), Absolute Temperature (T_abs) & Absolute temperature 2 (T₂). With our tool, you need to enter the respective value for Equilibrium constant 2, Equilibrium constant 1, Absolute Temperature & Absolute temperature 2 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 Enthalpy of Reaction?

In this formula, Enthalpy of Reaction uses Equilibrium constant 2, Equilibrium constant 1, Absolute Temperature & Absolute temperature 2. We can use 2 other way(s) to calculate the same, which is/are as follows -

Enthalpy of Reaction = Activation Energy Forward-Activation Energy Backward
Enthalpy of Reaction = log10(Equilibrium constant 2/Equilibrium constant 1)*(2.303*[R])*((Absolute Temperature*Absolute temperature 2)/(Absolute temperature 2-Absolute Temperature))

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