Question 1
What is a Hess cycle used for in chemistry?
Question 2
Which statement best describes Hess’s law?
Question 3
In an energy cycle, what does an exothermic step do to the enthalpy change?
Question 4
A reaction has $\Delta H = -120\,\text{kJ mol}^{-1}$. What does this mean?
Question 5
Which quantity is usually needed to calculate a standard enthalpy change of formation from an energy cycle?
