bomb calorimeter: meaning, definition, pronunciation and examples
C2Highly technical/scientific
Quick answer
What does “bomb calorimeter” mean?
A device that measures the heat of combustion of a substance by igniting it in a high-pressure oxygen atmosphere within a sealed, strong container (the bomb).
Audio
Pronunciation
Definition
Meaning and Definition
A device that measures the heat of combustion of a substance by igniting it in a high-pressure oxygen atmosphere within a sealed, strong container (the bomb).
A sophisticated piece of laboratory equipment used primarily in chemistry, physics, and engineering to determine the calorific value (energy content) of fuels, foods, and other materials by complete combustion.
Dialectal Variation
British vs American Usage
Differences
No significant lexical differences. Spelling follows respective conventions (e.g., calorific value vs. heating value in explanatory contexts).
Connotations
Purely technical with no regional cultural connotations.
Frequency
Equally rare outside specific scientific fields in both regions.
Grammar
How to Use “bomb calorimeter” in a Sentence
The researchers [VERB: used/employed/calibrated] a bomb calorimeter to [VERB: determine/measure/calculate] the calorific value.Vocabulary
Collocations
Examples
Examples of “bomb calorimeter” in a Sentence
adjective
British English
- The bomb-calorimeter method is considered the gold standard.
- We reviewed the bomb-calorimeter data.
American English
- The bomb calorimeter method is considered the gold standard.
- We reviewed the bomb calorimeter data.
Usage
Meaning in Context
Business
Rare, except in specific industries like fuel testing or food science R&D.
Academic
Core term in thermodynamics, physical chemistry, fuel technology, and nutritional science laboratories.
Everyday
Virtually never used.
Technical
The standard term for the device in analytical chemistry, energy content testing, and materials science.
Vocabulary
Synonyms of “bomb calorimeter”
Strong
Neutral
Weak
Watch out
Common Mistakes When Using “bomb calorimeter”
- Confusing it with a simple calorimeter (which often measures heat exchange at constant pressure).
- Misspelling as 'calorimiter' or 'calorometer'.
- Using 'bomb calorimeter' to refer to any heat-measuring device.
FAQ
Frequently Asked Questions
While the name includes 'bomb', it is a sealed, strong vessel designed for safe, controlled combustion under high-pressure oxygen. When operated correctly with proper safety protocols, it is a standard laboratory instrument and not an explosive device.
A bomb calorimeter conducts combustion at constant volume inside a sealed, rigid container ('the bomb'), allowing for precise measurement of the heat of combustion. A simple calorimeter (like a coffee-cup calorimeter) often operates at constant (atmospheric) pressure and is used for reactions in solution, measuring enthalpy changes.
Typical samples include solid and liquid fuels (coal, petroleum, biofuels), foodstuffs (to determine caloric content), explosives, and other combustible materials where knowing the total energy release upon complete combustion is important.
Pure oxygen at high pressure (typically 25-30 atm) ensures complete and rapid combustion of the sample, which is necessary for obtaining an accurate and reproducible measurement of the total heat released.
Bomb calorimeter is usually highly technical/scientific in register.
Bomb calorimeter: in British English it is pronounced /ˌbɒm ˌkæl.əˈrɪm.ɪ.tər/, and in American English it is pronounced /ˌbɑːm ˌkæl.əˈrɪm.ə.t̬ɚ/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think of a 'bomb' that doesn't explode but contains a reaction to 'calorie'-meter (measure heat).
Conceptual Metaphor
THE REACTION VESSEL IS A BOMB (emphasising strength, containment, and high-pressure conditions).
Practice
Quiz
What is the primary purpose of a bomb calorimeter?