Four reactions take place at the same temperature with the following estimated energy…
CHEMISTRY · Single correct · AP · Chemistry · Kinetics · Kinetics
Problem
Four reactions take place at the same temperature with the following estimated energy parameters:
• Reaction A: ΔH = −50 kJ mol⁻¹, Ea = 40 kJ mol⁻¹
• Reaction B: ΔH = −100 kJ mol⁻¹, Ea = 80 kJ mol⁻¹
• Reaction C: ΔH = +20 kJ mol⁻¹, Ea = 30 kJ mol⁻¹
• Reaction D: ΔH = −75 kJ mol⁻¹, Ea = 25 kJ mol⁻¹
Which reaction is most likely to be both highly exothermic and the fastest under these conditions?
(a) Reaction C
(b) Reaction B
(c) Reaction D
(d) Reaction A