sci.reaction-rate-order Calculator
Calculates reaction order, rate constant, and half-life from experimental concentration vs time data by testing first, second, and zero-order integrated rate laws. Zero-order: [A] = [A]₀ − kt (linear); first-order: ln[A] = ln[A]₀ − kt (exponential); second-order: 1/[A] = 1/[A]₀ + kt (hyperbolic).
Inputs
- Concentration A Mol L
- Amount of solute per unit volume. Higher concentration = more solute dissolved.
- Rate Constant K
- Amount per unit of time or per unit quantity. Check the denominator before interpreting.
- Reaction Order
- Reference formula or conversion factor shown for context.
- Time S
- Duration of the process. Make sure units match the rate inputs (seconds, minutes, or hours).
Results
- [A] at time t (mol/L)
- The computed duration or time value.
- half-life t½
- Time for half the radioactive material to decay. After 10 half-lives, less than 0.1% of the original material remains.
- conversion X
- Sample size or count used in the calculation.
- rate = k[A]^
- The value at the specified point or condition.
- 1st order: [A] = [A]₀·e^(-kt)
- Reference formula or conversion factor shown for context.
- 2nd order: 1/[A] = 1/[A]₀ + kt
- Sample size or count used in the calculation.
order reaction half rate time