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Calculate The Δ\Deltarxn for the Following Reaction Δ\Deltaf [SiO2(s)] = -910

Question 51

Multiple Choice

Calculate the Δ\Deltarxn for the following reaction. ( Δ\Deltaf [SiO2(s) ] = -910.9 kJ/mol; Δ\Deltaf [SiCl4(g) ] = -657.0 kJ/mol; Δ\Deltaf [HCl(g) ] = -92.3 kJ/mol; Δ\Deltaf [H2O (g) ] = -241.8 kJ/mol) SiO2(s) + 4HCl(g) \to SiCl4(g) + 2H2O(g)


A) -139.5 kJ
B) -137.4 kJ
C) -104.4 kJ
D) 104.4 kJ
E) 139.5 kJ

Correct Answer:

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