Water Equivalent
| Formula / Notation | W_eq = specific heat × mass; W_eq(calorimeter) = mc |
|---|---|
| Also Known As | Calorimeter water equivalent, heat capacity of calorimeter, calorimeter constant |
What is Water Equivalent?
The mass of water that would absorb the same amount of heat as a calorimeter for a given temperature rise. Used to correct for heat absorbed by the calorimeter itself in calorimetric measurements. Determined by calibration with a substance of known heat capacity.
Formula & Notation
Other Names / Synonyms: Calorimeter water equivalent, heat capacity of calorimeter, calorimeter constant
Properties & Characteristics
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
The mass of water that would absorb the same amount of heat as a calorimeter for a given temperature rise. Used to correct for heat absorbed by the calorimeter itself in calorimetric measurements. Determined by calibration with a substance of known heat capacity.
The water equivalent is used in bomb calorimetry and solution calorimetry calculations to correct for heat absorbed by the instrument. It enables accurate determination of enthalpies of combustion and reaction. It is a calibration parameter in precise thermochemical measurements.
Water equivalent determination involves calibration experiments that may use explosive or flammable substances in bomb calorimeters. Appropriate safety procedures for calorimetry apply.
The formula or notation for Water Equivalent is: W_eq = specific heat × mass; W_eq(calorimeter) = mc