5.3 Exercise 31

Using the data in Appendix G, calculate the standard enthalpy change for each of the following reactions:

(a) $\text{Si} \left(s\right) + 2 \text{F}_{2} \left(g\right) \rightarrow \text{SiF}_{4} \left(g\right)$

(b) $2 \text{C} \left(s\right) + 2 \text{H}_{2} \left(g\right) + \text{O}_{2} \left(g\right) \rightarrow \text{CH}_{3} \text{CO}_{2} \text{H} \left(l\right)$

(c) $\text{CH}_{4} \left(g\right) + \text{N}_{2} \left(g\right) \rightarrow \text{HCN} \left(g\right) + \text{NH}_{3} \left(g\right) ;$

(d) $\text{CS}_{2} \left(g\right) + 3 \text{Cl}_{2} \left(g\right) \rightarrow \text{CCl}_{4} \left(g\right) + \text{S}_{2} \text{Cl}_{2} \left(g\right)$