Calculates the activation energy of a chemical reaction using the Arrhenius equation. This calculator helps determine the minimum energy required for a reaction to occur.
Start with your values, or try a preset.
Enter Rate Constant (k₁) at T₁, Rate Constant (k₂) at T₂, Temperature (T₁), Temperature (T₂), and Gas Constant (R) in the units shown.
Read Activation Energy (Ea) in the results panel. Results update as you change the inputs.
Choose a preset to load an example, then adjust the values for your situation.
See the inputs and their calculated results.
Rate Constant (k₁) at T₁: 0.01 s⁻¹; Rate Constant (k₂) at T₂: 0.1 s⁻¹; Temperature (T₁): 300 K; Temperature (T₂): 310 K; Gas Constant (R): 8.314 J/(mol·K)
Activation Energy (Ea): 178,036.3399 J/mol; Activation Energy (Ea): 178.0363399 kJ/mol
Rate Constant (k₁) at T₁: 0.1 s⁻¹; Rate Constant (k₂) at T₂: 1 s⁻¹; Temperature (T₁): 298 K; Temperature (T₂): 308 K; Gas Constant (R): 8.314 J/(mol·K)
Activation Energy (Ea): 175,708.4669 J/mol; Activation Energy (Ea): 175.7084669 kJ/mol
Rate Constant (k₁) at T₁: 0.0001 s⁻¹; Rate Constant (k₂) at T₂: 0.001 s⁻¹; Temperature (T₁): 310 K; Temperature (T₂): 320 K; Gas Constant (R): 8.314 J/(mol·K)
Activation Energy (Ea): 189,905.4292 J/mol; Activation Energy (Ea): 189.9054292 kJ/mol
Find calculators for chemistry, biology, lab dilution, concentration, osmolarity, genetics, physics, and experimental planning.
Continue with another tool on a related topic.
Calculates the volume or number of moles of a gas at Standard Temperature and Pressure (STP). STP is defined as 0°C (273.15 K) and 1 atm pressure. This calculator uses the ideal gas law to perform these calculations.
Calculates the melting point of a substance based on the provided pressure. This calculator uses a simplified model and is most accurate for substances with well-defined melting points. Note: This calculator provides estimations and should not be used for critical applications.
Calculates the osmotic pressure of a solution using the van't Hoff equation. Osmotic pressure is the minimum pressure which needs to be applied to a solution to prevent the inward flow of water across a semipermeable membrane.
Calculates the Van't Hoff factor (i), which represents the number of particles a solute dissociates into in a solution. This factor is important in colligative properties calculations.