What would be the signs of ∆H and ∆S for the reaction
AB4(g) → AB3(g) + B(g) ?
1. Both zero.
2. ∆H = +, ∆S = −
3. Impossible to tell from the information given.
4. Both positive.
5. ∆H = −, ∆S = 0
6. ∆H = 0, ∆S = −
7. ∆H = −, ∆S = +
8. Both negative.
9. ∆H = +, ∆S = 0
10. ∆H = 0, ∆S = +
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