Hydrogen Peroxide May Decompose to Form Water and Oxygen Gas

question 2

Multiple Choice

Hydrogen peroxide may decompose to form water and oxygen gas according to the following reaction. 2H₂O₂(g) 2H₂O(g) + O₂(g)
In a particular experiment, 1.75 moles of H₂O₂ were placed in a 2.5-L reaction chamber at 307ºC.After equilibrium was reached, 1.20 moles of H₂O₂ remained.What is K for the reaction?

• A)2.0 × 10⁻⁴
• B)2.3 × 10⁻²
• C)2.4 × 10^-3
• D)5.5 × 10⁻³
• E)3.9 × 10⁻⁴

---

Definitions:

Fully Informed

Being fully informed means having all the necessary and relevant information or knowledge about a particular subject or situation before making decisions.

Objective Probability

A measure of the likelihood of an event occurring, based on factual data and statistical analysis rather than personal judgment.

Hard Facts

Evidence or data that is unambiguous and can be relied upon for its accuracy and solidity.

Economic Crises

Periods of significant decline in economic activity across a region or country, characterized by high unemployment, falling incomes, and severe disruption to commercial and financial markets.