Determine the Standard Enthalpy of Formation of Calcium Carbonate from the Thermochemical

question 8

Multiple Choice

Determine the standard enthalpy of formation of calcium carbonate from the thermochemical equations given below. Ca(OH) ₂(s) → CaO(s) + H₂O( )
Δ_rH° = 65.2 kJ/mol-rxn
Ca(OH) ₂(s) + CO₂(g) → CaCO₃(s) + H₂O( )
Δ_rH° = −113.8 kJ/mol-rxn
C(s) + O₂(g) → CO₂(g)
Δ_rH° = −393.5 kJ/mol-rxn
2 Ca(s) + O₂(g) → 2 CaO(s)
Δ_rH° = −1270.2 kJ/mol-rxn

• A) −1712.3 kJ/mol-rxn
• B) −441.8 kJ/mol-rxn
• C) −849.6 kJ/mol-rxn
• D) −980.6 kJ/mol-rxn
• E) −1207.6 kJ/mol-rxn

Recognize the impact of material and non-material culture on society.

Explain the relationship between biology and culture in human behavior and social evolution.

Identify the role of symbols, language, and rites of passage in culture.

Distinguish between various perspectives on culture including ethnocentrism, cultural relativism, and multiculturalism.

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Definitions:

Depreciation Expense

The portion of the cost of a fixed asset deducted as an expense over its useful life, reflecting the asset's consumption or wear and tear.

Common Stock

Shares of ownership in a corporation, granting holders voting rights and a share in the company's profits through dividends.

Long-term Debt

Debt that is not due within the next year and is often used to purchase or invest in significant assets or finance ongoing operations.