A Quantity of Liquid Methanol, CH₃OH, Is Introduced into a Rigid

question 94

Multiple Choice

A quantity of liquid methanol, CH₃OH, is introduced into a rigid 3.00-L vessel, the vessel is sealed, and the temperature is raised to 500K. At this temperature, the methanol vaporizes and decomposes according to the reaction CH₃OH(g) ⇌ CO(g) + 2 H₂(g) , K_c= 6.90*10^-2.If the concentration of H₂ in the equilibrium mixture is 0.426M, what mass of methanol was initially introduced into the vessel

• A) 147 g
• B) 74.3 g
• C) 33.9 g
• D) 49.0 g
• E) 24.8 g

---

Definitions:

Suburban Middle Class

A social class that became prominent in the mid-20th century, characterized by families living in suburban neighborhoods with a moderate to high income.

Subsidies

Financial support provided by the government to decrease the cost of goods and services for producers or consumers.

Mortgages

Loans specifically designed for the purchase of real estate, where the property itself serves as security against the loan until it is fully repaid.

Eisenhower

Refers to Dwight D. Eisenhower, the 34th President of the United States, who served from 1953 to 1961 and led significant domestic and international policies during the Cold War.