Rate Law Calculator

Calculate Chemical Reaction Rates and Orders

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Rate Constant Calculator

Calculate rate constant from reaction rate and concentrations.

Rate Constant (k): -
Overall Order: -

Reaction Rate Calculator

Calculate reaction rate using rate constant and concentrations.

Reaction Rate: - M/s

Half-Life Calculator

Calculate half-life for different reaction orders.

Half-Life: - s

Integrated Rate Law Calculator

Calculate concentration at time t using integrated rate laws.

Concentration at time t: - M

Understanding Rate Laws

What are Rate Laws?

Fundamental concepts:

  • Reaction rate
  • Rate constant
  • Reaction order
  • Concentration dependence
  • Temperature effects
  • Catalysis

Types of Rate Laws

Different orders:

  • Zero order
  • First order
  • Second order
  • Mixed order
  • Pseudo orders
  • Complex orders

Applications

Real-world uses:

  • Chemical synthesis
  • Drug degradation
  • Enzyme kinetics
  • Atmospheric chemistry
  • Materials degradation
  • Catalytic processes

Determining Rate Laws

Experimental methods:

  • Initial rates
  • Integration method
  • Half-life method
  • Isolation method
  • Graphical analysis
  • Computer fitting

Advanced Topics

Complex kinetics:

  • Consecutive reactions
  • Parallel reactions
  • Chain reactions
  • Reversible reactions
  • Temperature dependence
  • Reaction mechanisms

Essential Rate Law Formulas

General Rate Law

Rate = k[A]x[B]y

First Order Half-Life

t1/2 = ln(2)/k

Second Order Half-Life

t1/2 = 1/(k[A]0)