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Equilibrium constant 2 is the value of its reaction quotient at chemical equilibrium, at absolute temperature T2. Check FAQs
K2=K1exp((-(ΔH[R]))((1T2)-(1Tabs)))
K2 - Equilibrium constant 2?K1 - Equilibrium constant 1?ΔH - Enthalpy of Reaction?T2 - Absolute temperature 2?Tabs - Absolute Temperature?[R] - Universal gas constant?

Equilibrium Constant 2 using Enthalpy of Reaction Example

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Here is how the Equilibrium Constant 2 using Enthalpy of Reaction equation looks like with Values.

Here is how the Equilibrium Constant 2 using Enthalpy of Reaction equation looks like with Units.

Here is how the Equilibrium Constant 2 using Enthalpy of Reaction equation looks like.

171541.9538Edit=0.026Editexp((-(300Edit8.3145))((1310Edit)-(1273.15Edit)))
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Equilibrium Constant 2 using Enthalpy of Reaction Solution

Follow our step by step solution on how to calculate Equilibrium Constant 2 using Enthalpy of Reaction?

FIRST Step Consider the formula
K2=K1exp((-(ΔH[R]))((1T2)-(1Tabs)))
Next Step Substitute values of Variables
K2=0.026exp((-(300KJ/mol[R]))((1310K)-(1273.15K)))
Next Step Substitute values of Constants
K2=0.026exp((-(300KJ/mol8.3145))((1310K)-(1273.15K)))
Next Step Convert Units
K2=0.026exp((-(300000J/mol8.3145))((1310K)-(1273.15K)))
Next Step Prepare to Evaluate
K2=0.026exp((-(3000008.3145))((1310)-(1273.15)))
Next Step Evaluate
K2=171541.953809929
LAST Step Rounding Answer
K2=171541.9538

Equilibrium Constant 2 using Enthalpy of Reaction Formula Elements

Variables
Constants
Functions
Equilibrium constant 2
Equilibrium constant 2 is the value of its reaction quotient at chemical equilibrium, at absolute temperature T2.
Symbol: K2
Measurement: NAUnit: Unitless
Note: Value can be positive or negative.
Equilibrium constant 1
Equilibrium constant 1 is the value of its reaction quotient at chemical equilibrium, at absolute temperature T1.
Symbol: K1
Measurement: NAUnit: Unitless
Note: Value can be positive or negative.
Enthalpy of Reaction
The Enthalpy of Reaction is the difference in enthalpy between products and reactants.
Symbol: ΔH
Measurement: Energy Per MoleUnit: KJ/mol
Note: Value can be positive or negative.
Absolute temperature 2
Absolute temperature 2 is the temperature of an object on a scale where 0 is taken as absolute zero.
Symbol: T2
Measurement: TemperatureUnit: K
Note: Value can be positive or negative.
Absolute Temperature
Absolute Temperature is defined as the measurement of temperature beginning at absolute zero on the Kelvin scale.
Symbol: Tabs
Measurement: TemperatureUnit: K
Note: Value can be positive or negative.
Universal gas constant
Universal gas constant is a fundamental physical constant that appears in the ideal gas law, relating the pressure, volume, and temperature of an ideal gas.
Symbol: [R]
Value: 8.31446261815324
exp
n an exponential function, the value of the function changes by a constant factor for every unit change in the independent variable.
Syntax: exp(Number)

Other Formulas to find Equilibrium constant 2

​Go Equilibrium Constant at Temperature T2
K2=(AfAb)exp(Eab-Eaf[R]T2)
​Go Equilibrium Constant 2 using Activation Energy of Reaction
K2=K1exp((Eab-Eaf[R])((1T2)-(1Tabs)))

Other formulas in Arrhenius Equation category

​Go Arrhenius Equation
Kh=A(exp(-(Ea[R]Tabs)))
​Go Pre-exponential Factor in Arrhenius Equation
A=Khexp(-(Ea[R]Tabs))
​Go Arrhenius Equation for Forward Reaction
Kf=Afexp(-(Eaf[R]Tabs))
​Go Pre-exponential Factor in Arrhenius Equation for Forward Reaction
Af=Kfexp(-(Eaf[R]Tabs))

How to Evaluate Equilibrium Constant 2 using Enthalpy of Reaction?

Equilibrium Constant 2 using Enthalpy of Reaction evaluator uses Equilibrium constant 2 = Equilibrium constant 1*exp((-(Enthalpy of Reaction/[R]))*((1/Absolute temperature 2)-(1/Absolute Temperature))) to evaluate the Equilibrium constant 2, The Equilibrium constant 2 using enthalpy of reaction is defined as the value of its reaction quotient at chemical equilibrium at an absolute temperature, T2 in terms of the enthalpy of the reaction. Equilibrium constant 2 is denoted by K2 symbol.

How to evaluate Equilibrium Constant 2 using Enthalpy of Reaction using this online evaluator? To use this online evaluator for Equilibrium Constant 2 using Enthalpy of Reaction, enter Equilibrium constant 1 (K1), Enthalpy of Reaction (ΔH), Absolute temperature 2 (T2) & Absolute Temperature (Tabs) and hit the calculate button.

FAQs on Equilibrium Constant 2 using Enthalpy of Reaction

What is the formula to find Equilibrium Constant 2 using Enthalpy of Reaction?
The formula of Equilibrium Constant 2 using Enthalpy of Reaction is expressed as Equilibrium constant 2 = Equilibrium constant 1*exp((-(Enthalpy of Reaction/[R]))*((1/Absolute temperature 2)-(1/Absolute Temperature))). Here is an example- 171542 = 0.026*exp((-(300000/[R]))*((1/310)-(1/273.15))).
How to calculate Equilibrium Constant 2 using Enthalpy of Reaction?
With Equilibrium constant 1 (K1), Enthalpy of Reaction (ΔH), Absolute temperature 2 (T2) & Absolute Temperature (Tabs) we can find Equilibrium Constant 2 using Enthalpy of Reaction using the formula - Equilibrium constant 2 = Equilibrium constant 1*exp((-(Enthalpy of Reaction/[R]))*((1/Absolute temperature 2)-(1/Absolute Temperature))). This formula also uses Universal gas constant and Exponential Growth (exp) function(s).
What are the other ways to Calculate Equilibrium constant 2?
Here are the different ways to Calculate Equilibrium constant 2-
  • Equilibrium constant 2=(Forward Pre-exponential Factor/Backward Pre-exponential factor)*exp((Activation Energy Backward-Activation Energy Forward)/([R]*Absolute temperature 2))OpenImg
  • Equilibrium constant 2=Equilibrium constant 1*exp(((Activation Energy Backward-Activation Energy Forward)/[R])*((1/Absolute temperature 2)-(1/Absolute Temperature)))OpenImg
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