This chemistry question involves key chemical concepts and calculations. The detailed solution below walks through each step, from identifying the reaction type to computing the final answer.
ScanSolve AI Answer
Here are the energy change diagrams for the forward and backward reactions: Forward reaction: NH4Cl(s) -> NH3(g) + HCl(g) This is an endothermic reaction, meaning it absorbs energy. The products have higher potential energy than the reactants. [scale=0.8] % Axes [->] (0,0) -- (6,0) node[right] Reaction Progress; [->] (0,0) -- (0,5) node[above] Potential Energy; % Reactants [thick] (0.5,1) -- (1.5,1) node[left,yshift=-0.5cm] NH4Cl(s); % Products [thick] (4.5,4) -- (5.5,4) node[right,yshift=0.5cm] NH3(g) + HCl(g); % Reaction path [thick] (1.5,1) .. controls (2.5,4.5) and (3.5,4.5) .. (4.5,4); % Activation Energy (Ea) [<->] (1.7,1) -- (1.7,4.5); at (2.2,2.75) E_a,f; % Heat of Reaction (ΔH) [<->] (5.7,1) -- (5.7,4); at (6.2,2.5) H_f; Backward reaction: NH3(g) + HCl(g) -> NH4Cl(s) This is an exothermic reaction, meaning it releases energy. The products have lower potential energy than the reactants. [scale=0.8] % Axes [->] (0,0) -- (6,0) node[right] Reaction Progress; [->] (0,0) -- (0,5) node[above] Potential Energy; % Reactants [thick] (0.5,4) -- (1.5,4) node[left,yshift=-0.5cm] NH3(g) + HCl(g); % Products [thick] (4.5,1) -- (5.5,1) node[right,yshift=0.5cm] NH4Cl(s); % Reaction path [thick] (1.5,4) .. controls (2.5,4.5) and (3.5,4.5) .. (4.5,1); % Activation Energy (Ea) [<->] (1.7,4) -- (1.7,4.5); at (2.2,4.25) E_a,r; % Heat of Reaction (ΔH) [<->] (5.7,1) -- (5.7,4); at (6.2,2.5) H_r;