Sand is converted to pure silicon in a three-step process. The third step is SiCIA(g) +...

  

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Sand is converted to pure silicon in a three-step process. The third step is SiCIA(g) + 2Mg(s) → 2M9CI2(s) + Si(s) AH = -625.6 kJ What is the enthalpy change when 25.0 mol of silicon tetrachloride is converted to elemental silicon? A. –25.0 kJ B. –7820 kJ C. –1.56 X 10* kJ D. –3.13 x 10*kJ E. None of these choices are correct. Sand is converted to pure silicon in a three-step process. The third step is SiCIA(g) + 2Mg(s) → 2M9CI2(s) + Si(s) AH = -625.6 kJ What is the enthalpy change when 25.0 mol of silicon tetrachloride is converted to elemental silicon? A. –25.0 kJ B. –7820 kJ C. –1.56 X 10* kJ D. –3.13 x 10*kJ E. None of these choices are correct.

Answer rating: 100% (QA)

Solution The correct answer is c Explanation In the g... View the full answer