Ethane is C2H6. Consider the reaction below:
C2H6(g) ⇋ 2 Cgraphite(s) + 3 H2(g)
∆G◦rxn = 7.86 kJ · mol−1 The decomposition of ethane is (spontaneous/non-spontaneous) and therefore ethane is (stable/unstable).
1. spontaneous, unstable
2. spontaneous, stable
3. non-spontaneous, unstable
4. non-spontaneous, stable
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