What Is the Mass Change in Grams for the Reaction $\rarr$

question 50

Multiple Choice

What is the mass change in grams for the reaction 2 NO₂(g) $\rarr$ N₂O₄(g) ? The enthalpy for the reaction is -57.2 kJ.

• A)-6.36 × 10^-13 g
• B)-6.36 × 10^-10 g
• C)-1.91 × 10^-7 g
• D)-1.91 × 10^-4 g

---

Definitions:

Hypothesis

An initial explanation offered for a phenomenon that serves as a basis for ongoing exploration.

Depressed Students

Students who are experiencing symptoms of depression, including persistent sadness, lack of interest in activities, and difficulty concentrating.

Pessimistic Thinking

A bias towards interpreting events in their most pessimistic light or foreseeing the gloomiest possible outcomes, marked by a shortfall in confidence or optimism about the forthcoming.

False News

Misinformation or fabricated information presented as news, often with the intent to deceive.