"""A diagram is shown. A long arrow faces upward on the left with the phrase """"H increasing."""" A horizontal line at the bottom of the diagram is shown with the formula """"C O subscript 2 (g)"""" below it. A horizontal line at the top of the diagram has the formulas """"C (s) + O subscript 2 (g)"""" above it. The top and bottom lines are connected by a downward facing arrow with the value """"Δ H = –394 k J"""" written beside it. Below and to the right of the top horizontal line is a second horizontal line with the equations """"C O (g) + one half O subscript 2 (g)"""" above it. This line and the bottom line are connected by a downward facing arrow with the value """"Δ H = –283 k J"""" written beside it. The same line and the top line are connected by a downward facing arrow with the value """"Δ H = –111 k J"""" written beside it. There are three brackets to the right of the diagram. The first bracket runs from the top horizontal line to the second horizontal line. It is labeled, """"Enthalpy of reactants."""" The second bracket runs from the second horizontal line to the bottom horizontal line. It is labeled, """"Enthalpy of products."""" Both of these brackets are included in the third bracket which runs from the top to the bottom of the diagram. It is labeled, """"Enthalpy change of exothermic reaction in 1 or 2 steps."""""""
{}