(a) For each of the following reactions, predict the sign of ΔH° and ΔS° without doing any calculations. (b) Based on your general chemical knowledge, predict which of these reactions will have K >1. (c) In each case indicate whether K should increase or decrease with increasing temperature.
(i) 2 Mg(s) + O2(g)⇌2 MgO(s)
(ii) 2 KI(s)⇌2 K(g) + I2(g)
(iii) Na2(g)⇌2 Na(g)
(iv) 2 V2O5(s)⇌4 V(s) + 5 O2(g)
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