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Degree of Dissociation from Kp and Total Pressure Calculator

Fraction dissociated for A ⇌ 2B from Kp and P_total.

For the equilibrium A(g) ⇌ 2B(g), calculates the degree of dissociation α from Kp and total pressure P: Kp = 4α²P / (1−α²).

Dr. Helena Ortiz By Dr. Helena Ortiz
Published Last reviewed 1 min read

Inputs

atm

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  1. Fill in the inputs above using the units you already have.
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  3. Hover any result row for the underlying formula and intermediate values.

Formula

Kp = 4α²P / (1−α²); α = √(Kp/(4P+Kp))

In depth

For the equilibrium A(g) ⇌ 2B(g), calculates the degree of dissociation α from Kp and total pressure P: Kp = 4α²P / (1−α²).