Which chemical transformation represents an endothermic process ?
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Answer: D. Both B. and C.
Explanation
Endothermic chemical processes absorb thermal energy from their surroundings during reaction. The steam-carbon reaction requires heat input to produce carbon monoxide and hydrogen gas. Thermal decomposition of iron pyrites also absorbs energy to break chemical bonds apart. Endothermic reactions exhibit a positive enthalpy change during chemical transformations. Supplying external heat is necessary to maintain reaction rates for high-temperature processes. Industrial reactors for such processes require continuous thermal energy input via burners or jackets.
Understanding reaction thermodynamics is vital for designing safe and efficient chemical reactors. Industrial production of synthesis gas relies heavily on endothermic reforming reactions. Balancing energy requirements optimizes operational costs in large-scale chemical manufacturing plants. Absorption of sulfur trioxide in sulfuric acid is a strongly exothermic process releasing heat. Listing only option B ignores the fact that pyrite thermal dissociation is also endothermic. Listing only option C ignores the endothermic nature of the water-gas generation reaction.
- Subject
- Engineering
- Category
- Chemical Engineering
- Topic
- —
- Difficulty
- medium
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