Determine $\Delta$ _rH ^$\circ$ for the Following Reaction,
2 NH₃(g)+ 5/2 O₂(g)

question 71

Multiple Choice

Determine $\Delta$ _rH ^$\circ$ for the following reaction,
2 NH₃(g) + 5/2 O₂(g) $\to$ 2 NO(g) + 3 H₂O(g)
Given the thermochemical equations below.

• A) -1178.2 kJ/mol-rxn
• B) -452.8 kJ/mol-rxn
• C) -394.6 kJ/mol-rxn
• D) -211.0 kJ/mol-rxn
• E) +1178.2 kJ/mol-rxn

---

Definitions:

Intermittent Reinforcement

A conditioning schedule in which rewards or punishments are given only some of the time a behavior occurs, leading to stronger response patterns.

Extinction

In behavioral psychology, the gradual weakening and disappearance of a conditioned response when the reinforcement is no longer presented.

Dangerous Pranks

Actions intended to be humorous or playful but carry a high risk of causing harm or damage.

Praise

The expression of approval or admiration for someone or something, often used as a form of encouragement.