Chemistry 0620 · IGCSE · Exothermic and endothermic reactions

Exothermic and endothermic reactions — practice question

Among the experiments, which one is the most exothermic?

  • Ainitial temperature $20\,^{\circ}\text{C}$, final temperature $5\,^{\circ}\text{C}$
  • Binitial temperature $20\,^{\circ}\text{C}$, final temperature $32\,^{\circ}\text{C}$
  • Cinitial temperature $25\,^{\circ}\text{C}$, final temperature $12\,^{\circ}\text{C}$
  • Dinitial temperature $25\,^{\circ}\text{C}$, final temperature $34\,^{\circ}\text{C}$

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