More Challenging Questions
These questions require more thought and integrate several concepts.
Without consulting tables of ΔHf°, S°, or ΔGf° values, predict which of these reactions is
(i) always product-favored.
(ii) product-favored at low temperatures, but not productfavored at high temperatures.
(iii) not product-favored at low temperatures, but productfavored at high temperatures.
(iv) never product-favored.
(a) 2 NO2(g) → N2O4(g)
(b) C5H12(g) + 8 O2(g) → 5 CO2(g) + 6 H2O(g)
(c) P4(g) + 10 F2(g) → 4 PF5(g)
[Hint: Use the qualitative rules regarding bond enthalpies in Section 6.7 (p. 238) to predict the sign of ΔH°.]
We need at least 10 more requests to produce the solution.
0 / 10 have requested this problem solution
The more requests, the faster the answer.