Van't Hoff K2
Compute the natural log of an equilibrium constant at a second temperature with the van 't Hoff relation from the reaction enthalpy and a known value at a first temperature.
Description
Compute the natural log of an equilibrium constant at a second temperature with the van 't Hoff relation from the reaction enthalpy and a known value at a first temperature.
Van't Hoff K2: Compute the natural log of an equilibrium constant at a second temperature with the van 't Hoff relation from the reaction enthalpy and a known value at a first temperature.
When to use Van't Hoff K2
Use this chemistry calculator to reproduce a named relationship with explicit quantities and units for study, laboratory planning, or an independent numerical check.
- Natural log of K1
- Required number input.
- Reaction enthalpy (J/mol)
- Required number input.
- Temperature T1 (K)
- Required number input.
- Temperature T2 (K)
- Required number input.
How Van't Hoff K2 works
Compute the natural log of an equilibrium constant at a second temperature with the van 't Hoff relation from the reaction enthalpy and a known value at a first temperature. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.1
- Natural log of K2
- The resulting natural log of k2 returned as a number.
Limitations and assumptions
- Equilibrium expressions must match the balanced reaction and selected standard state. Concentrations or partial pressures may not equal activities at non-ideal conditions, and a calculated equilibrium constant does not describe how quickly equilibrium is reached.
- Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.
Alternative or Complementary approaches
Check units and significant figures, compare the result with limiting cases, and use measured or source-specific constants where available. Laboratory, safety, and regulatory decisions require validated methods and appropriate uncertainty analysis.
References
-
Chemical equilibrium — Wikipedia contributors
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