Reaction Rate Calculator
Reaction rate calculator
Calculate reaction rate from rate constant, concentration, and reaction order.
Result
Rate = 0.117
Uses rate law: rate = k[A]^n.
Chem signal
Advanced options
Flow
- Enter rate constant k.
- Enter reactant concentration [A] and reaction order n.
- Review computed reaction rate value for the specified condition.
Example
Worked example: k=0.18, [A]=0.65, n=1
- 1 Rate = k[A]^n
- 2 Rate = 0.18 × (0.65)^1
- 3 Rate = 0.117
Reaction rate is 0.117 in rate-law units.
How
- Enter rate constant k.
- Enter reactant concentration [A] and reaction order n.
- Review computed reaction rate value for the specified condition.
Avoid
- Using concentration in the wrong unit basis relative to k.
- Assuming reaction order always equals stoichiometric coefficient.
- Applying this single-species form to multi-reactant kinetics without extensions.
Checks
Best fit
Reaction Rate Calculator is built for evaluate rate-law expression rate = k[a]^n for concentration-dependent reaction kinetics. If Reaction Rate Calculator does not match the input scope, compare the answer with a second method.
Input check
Match the entered values to this rule before copying the answer: Rate = k[A]^n.
Sanity check
For Reaction Rate Calculator, use the worked example as a quick benchmark: Reaction rate is 0.117 in rate-law units. If the reaction rate calculator answer is far away, check whether an input, unit, or mode changed.
Before copying
Review this common issue first: using concentration in the wrong unit basis relative to k.
Ref only. Verify values. Follow lab safety.
FAQ
Can reaction order be fractional?
Yes. Empirical reaction orders can be non-integer.
What if concentration is zero?
Rate becomes zero for positive order values.
Does this include reverse reaction terms?
No. This tool evaluates a single forward rate-law expression.
Switch
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