The heat of formation of ethene, C2H4 is 50 kJmol−1, and that of ethane, C2H6 is -82kJmol−1. Calculate the heat evolved in the process: C2H4 + H2 → C2H6 by Sunday | Jan 2 | Chemistry WAEC | 0 comments A. -122kJ B. -132kJ C. -88kJ D. -60kJ Correct Answer: Option B B. -132kJ Users Also Read These:If the heat of combustion of hydrogen is -285.8kJ;…A colourless gas with a pungent smell is evolved…Ice of mass 50g at 0°C was completely melted by 70%…An immersion heater rated 400W, 220V is used to heat…A solid of mass 0.5kg initially at 50oC melts at…