The standard enthalpy of reaction for the dissolution of silica in aqueous HF is 4.6 kJ mol–1. What — Thermodynamics Chemistry Question
Question
The standard enthalpy of reaction for the dissolution of silica in aqueous HF is 4.6 kJ mol–1. What is the standard enthalpy of formation of SiF4(g)?
SiO2(s) + 4 HF(aq) → SiF4(g) + 2 H2O(l) ∆Hºrxn = 4.6 kJ mol–1
A.
–1624.3 kJ mol–1
B.✓ Correct
–1615.1 kJ mol–1
C.
–949.8 kJ mol–1
D.
–940.6 kJ mol–1
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