題組內容

25. This question is about ethene, C2H4, and ethyne, C2H2.

25e. Explain, giving two reasons, the difference in the values for 25c and 25d. If you did not obtain answers, use −475 kJ for 25c and −600 kJ for 25d. [1 marks]

65fba3c4cdcb7.jpg