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CHEMCO Exit Exam • Set 15 Question 15 of 30

In exothermic reactions, the amount of energy required for a chemical reaction is

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Direct Answer

Option C: Less than the total energy released

Exothermic reactions are defined by a net release of energy, meaning the energy required to initiate the reaction (activation energy) is less than the total energy subsequently released. This principle is crucial for assessing cargo reactivity and potential self-heating, as detailed in IBC Code Chapter 15 for reactive cargoes.

All Options

A
Equal to the the total energy released
B
Greater than the total energy released
C
Less than the total energy released (Correct Answer)
D
Zero

Detailed Explanation & Context

Exothermic reactions are defined by a net release of energy, meaning the energy required to initiate the reaction (activation energy) is less than the total energy subsequently released. This principle is crucial for assessing cargo reactivity and potential self-heating, as detailed in IBC Code Chapter 15 for reactive cargoes.

Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Advanced Training for Chemical Tanker Cargo Operations (CHEMCO).

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