2.9. Consider the following energy diagram for the conversion A→G: Energy A B E Reaction coordinate (a) Which points on the graph correspond to transition states? (b) Which points on the graph correspond to reactive intermediates? (c) How many steps are present in the reaction mechanism? (d) Which step will be rate-determining? Why? ลลลล 2.10. The addition of water to ethylene to yield ethanol has the following thermodynamic parameters: AH°=-44 kJ.mol" AS-120 J.K.mol"¹ (a) Is the reaction exothermic or endothermic? (1) (b) Is the reaction spontaneous at room temperature (25 °C)? Do a calculation to explain your answer. (3)

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2.9. Consider the following energy diagram for the conversion A→G:
Energy
A
B
E
Reaction coordinate
(a) Which points on the graph correspond to transition states?
(b) Which points on the graph correspond to reactive intermediates?
(c) How many steps are present in the reaction mechanism?
(d) Which step will be rate-determining? Why?
ลลลล
2.10. The addition of water to ethylene to yield ethanol has the following thermodynamic
parameters:
AH°=-44 kJ.mol"
AS-120 J.K.mol"¹
(a) Is the reaction exothermic or endothermic?
(1)
(b) Is the reaction spontaneous at room temperature (25 °C)? Do a calculation to explain
your answer.
(3)
Transcribed Image Text:2.9. Consider the following energy diagram for the conversion A→G: Energy A B E Reaction coordinate (a) Which points on the graph correspond to transition states? (b) Which points on the graph correspond to reactive intermediates? (c) How many steps are present in the reaction mechanism? (d) Which step will be rate-determining? Why? ลลลล 2.10. The addition of water to ethylene to yield ethanol has the following thermodynamic parameters: AH°=-44 kJ.mol" AS-120 J.K.mol"¹ (a) Is the reaction exothermic or endothermic? (1) (b) Is the reaction spontaneous at room temperature (25 °C)? Do a calculation to explain your answer. (3)
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