Assume each reaction is carried out in an open container. For which reaction will $\Delta H = \Delta E$ ?

• A
  $2CO_{(g)} + O_{2_{(g)}} \rightarrow 2CO_{2_{(g)}}$
• B
  $H_{2_{(g)}} + Br_{2_{(g)}} \rightarrow 2HBr_{(g)}$
• C
  $C_{(s)} + 2H_{2}O_{(g)} \rightarrow 2H_{2_{(g)}} + CO_{2_{(g)}}$
• D
  $PCl_{5_{(g)}} \rightarrow PCl_{3_{(g)}} + Cl_{2_{(g)}}$