(a) For each of the following reactions, predict the sign of dH0 and 65 and discuss

Chapter 19, Problem 19.91

(choose chapter or problem)

(a) For each of the following reactions, predict the sign of dH0 and 65 and discuss briefly how these factors determine the magnitude of K. (b) Based on your general chemical knowledge, predict which of these reactions will have K > 0. (c) In each case indicate whether K should increase or decrease with increasing temperature. (i) 2 Mg(s) + 02{g) = 2 MgO(s) (ii) 2 KI(s) = 2 K{g) + 12{g) (iii) Na2{g) = 2 Na{g) (iv) 2 Vz05(s) = 4 V(s) + 5 Oz{g)

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