Chemistry 5070 · O Level · Exothermic and endothermic reactions

Exothermic and endothermic reactions — practice question

An industrial process is represented by the equation below. $\text{C}(s) + \text{H}_2\text{O}(g) \rightarrow \text{CO}(g) + \text{H}_2(g) \qquad \Delta H = +131\,\text{kJ mol}^{-1}$ Which row is the correct one?

  • Aoxidising agent: $\text{C}(s)$, reducing agent: $\text{H}_2\text{O}(g)$, reaction is endothermic
  • Boxidising agent: $\text{C}(s)$, reducing agent: $\text{H}_2\text{O}(g)$, reaction is exothermic
  • Coxidising agent: $\text{H}_2\text{O}(g)$, reducing agent: $\text{C}(s)$, reaction is endothermic
  • Doxidising agent: $\text{H}_2\text{O}(g)$, reducing agent: $\text{C}(s)$, reaction is exothermic

Worked solution & mark scheme

This 1-mark question has a full step-by-step worked solution and mark scheme.

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI