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Question
At 25C, 
Gf is -620 kJ/mol for SiCl4(g) and -592 kJ/mol for MgCl2(s). Calculate G for the reaction, SiCl4(g) + 2 MG(s) -> 2 MgCl2(s) + Si(s) and determine if the reaction is spontaneous at 25C if the pressure of SiCl4(g) is 1 atm.
A) G = 28 kJ; the process is spontaneous.
B) G = 28 kJ; the process is nonspontaneous.
C) G = -564 kJ; the process is spontaneous.
D) G = -564 kJ; the process is nonspontaneous.
Answer
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