What Is ΔH°_rxn for the Following Reaction? SiO₂(s)+ 4HCl(g)→ SiCl₄(g)

question 109

Multiple Choice

What is ΔH°_rxn for the following reaction? SiO₂(s) + 4HCl(g) → SiCl₄(g) + 2H₂O(g)
Substance ΔH°_f(kJ/mol)
SiO₂(s) -859.3
SiCl₄(g) -662.8
HCl(g) -92.3
H₂O(g) -241.8

• A)-1856.2 kJ/mol
• B)-1372.6 kJ/mol
• C)-47.0 kJ/mol
• D)82.1 kJ/mol
• E)530.6 kJ/mol

---

Definitions:

Loan Principal

The initial amount of money borrowed in a loan, excluding interest and other charges.

42 Months

A time period equal to three and a half years.

Maturity Value

The amount payable to an investor at the end of an investment period.

7.5 Years

A timeframe equal to seven and a half years, often used in contexts like finance or project planning.