Which of the following are unstable with respect to their ...

[joesmith1212]

Question 1

At 25°C, ΔG°f is -620 kJ/mol for SiCl4(g) and -592 kJ/mol for MgCl2(s). Calculate ΔG° for the reaction, SiCl4(g) + 2 Mg(s) → 2 MgCl2(s) + Si(s) and determine if the reaction is spontaneous at 25°C if the pressure of SiCl4(g) is 1 atm.
◦ ΔG° = 28 kJ; the process is spontaneous.
◦ ΔG° = -564 kJ; the process is nonspontaneous.
◦ ΔG° = -564 kJ; the process is spontaneous.
◦ ΔG° = 28 kJ; the process is nonspontaneous.

Question 2

Which of the following are unstable with respect to their constituent elements at 25°C?



◦ C8H18(l), C2H2(g)
◦ C2H2(g)
◦ C8H18(l), CH3OH(l)
◦ CH3OH(l)

[joanwhite]

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[joesmith1212]

Thanks for the timely response, appreciate it

[T4T]

Great answer, keep it coming