Kp from Kc Calculator
⚖ Acids, Bases & Equilibrium. Use the Kp from Kc formula to find kp, kc, temperature, δn (gas moles): pick the value you want, type the others, and the answer updates as you go.
Kp2.97 × 10⁻⁴
Pick the ○ next to the value you want to find, fill in the others, and it solves as you type.
What each letter means
| Quantity | Unit |
|---|---|
| Kp | no unit |
| Kc | no unit |
| Temperature | K |
| Δn (gas moles) | no unit |
Worked example
Find the kp when Kc = 0.5, Temperature = 500 K, Δn (gas moles) = -2.
Using Kp = Kc(RT)^(Δ n): Kp = 2.97 × 10⁻⁴.
Frequently asked questions
What is the formula for Kp from Kc?
Kp = Kc(RT)^(Δ n).
What do the letters stand for, and what units are used?
Kp, Kc, Temperature in K, Δn (gas moles).
How do you calculate kp?
Put the values into Kp = Kc(RT)^(Δ n). For example, with Kc = 0.5, Temperature = 500 K, Δn (gas moles) = -2, kp = 2.97 × 10⁻⁴.
Can I solve for a different value?
Yes. In the calculator above, pick the circle next to any value (kp, kc, temperature, δn (gas moles)) and fill in the others: it rearranges the formula for you.
