\begin{equation}\label{eq:gas-load-charge-material-heat-of-reaction-cpp} Q_{reaction} = \begin{cases} m_{feed} \cdot f_{reacted} \cdot H_{reaction} & \text{if endothermic} \\ 0 & \text{if exothermic or none} \end{cases}\end{equation}

Symbols

\(Q_{reaction}\)	Heat of reaction \([\unit{ \btu\per\hour}]\)
\(m_{feed}\)	Feed rate for gas mixture \([\unit{ \pound\per\hour}]\)
\(f_{reacted}\)	Fraction of feed gas reacted \([\unit{ 1}]\)
\(H_{reaction}\)	Heat of reaction \([\unit{ \btu\per\pound}]\)