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Kp計算機

Kc、温度、Δnから圧力に基づく平衡定数Kpを計算します。

はじめに

Kp Calculator — Calculate the pressure-based equilibrium constant Kp from Kc, temperature and Δn. Enter Kc, Temperature (K), Δn (mol gas products - reactants) to get an instant, accurate result.

計算式

Kp = Kc × (RT)^Δn, where R = 0.0821 L·atm/(mol·K), T is temperature in Kelvin, and Δn is the change in moles of gas (moles of gaseous products − moles of gaseous reactants).

ステップごとの説明

  1. Enter the Kc.
  2. Enter the Temperature (K).
  3. Enter the Δn (mol gas products - reactants).
  4. Click Calculate to see your result instantly.

実例

Example: With Kc = 4, Temperature (K) = 300, Δn (mol gas products - reactants) = 1, the Kp Calculator gives Kp: 98.4688, Kc: 4, Delta N: 1.

よくある質問

What is Δn in this formula?
The difference between the total moles of gaseous products and the total moles of gaseous reactants in the balanced equation — only gas-phase species count.
When are Kp and Kc equal?
When Δn = 0 (equal moles of gas on both sides), since (RT)^0 = 1 makes Kp = Kc.
What inputs does the Kp Calculator need?
You'll need to provide: Kc, Temperature (K), Δn (mol gas products - reactants). All fields use sensible defaults, so you can see a working example immediately and then adjust the values to match your own numbers.
How accurate is the Kp Calculator?
The Kp Calculator applies the formula exactly as calculated — Kp = Kc × (RT)^Δn, where R = 0.0821 L·atm/(mol·K), T is temperature in Kelvin, and Δn is the change in moles of gas (moles of gaseous products − moles of gaseous reactants). — so results are precise for the inputs you provide. Accuracy depends on entering correct, realistic input values.
Is the Kp Calculator free to use?
Yes, the Kp Calculator is completely free, requires no signup, and runs instantly in your browser.

Kp計算機について

The Kp Calculator uses a real, verifiable formula — Kp = Kc × (RT)^Δn, where R = 0.0821 L·atm/(mol·K), T is temperature in Kelvin, and Δn is the change in moles of gas (moles of gaseous products − moles of gaseous reactants). — so results are accurate every time, not an approximation.