Question 1
What is a bond enthalpy in thermochemistry?
Question 2
Why are bond enthalpies usually listed as average values?
Question 3
What is the sign of the enthalpy change when a bond is broken?
Question 4
Which equation is commonly used to estimate reaction enthalpy from bond enthalpies?
Question 5
A reaction breaks bonds that require $400\ \text{kJ}$ and forms bonds that release $550\ \text{kJ}$. What is the estimated $\Delta H_{\text{rxn}}$?
