Question 1
What is the definition of enthalpy ($H$) in a chemical system?
Question 2
Which of the following statements best describes an exothermic reaction?
Question 3
If a reaction has an enthalpy change ($\Delta H$) of $+50 \; \text{kJ mol}^{-1}$, what type of reaction is it?
Question 4
In an exothermic reaction, which of the following is true about the enthalpy of the reactants and products?
Question 5
Which of the following best describes the sign of $\Delta H$ for an exothermic reaction?
