Calculate the Energy Change Associated with the Chemical Reaction Provided

question 58

Multiple Choice

Calculate the energy change associated with the chemical reaction provided here. State whether it is endothermic or exothermic. [Bond energies (kJ/mol) : H-H: 436; N-H: 391; NΞN 945]
N₂ + 3 H₂  2 NH₃

• A) +93.0 kJ/mol, exothermic
• B) 1080 kJ/mol, endothermic
• C) -1080 kJ/mol, exothermic
• D) -93.0 kJ/mol, exothermic
• E) -93.0 kJ/mol, endothermic

---

Definitions:

Readability

The ease with which text can be read and understood by the target audience, often influenced by factors such as language, structure, and design.

Instruction Manual

A document that provides guidelines, procedures, or directions for using a product or completing a task.

Sentence Length

The number of words in a sentence, which can affect readability and tone in written communication.

Dangling Modifier

A grammatical mistake where a descriptive phrase does not clearly relate to the noun or pronoun it is intended to modify.