The combustion of C2H5OH is represented by the equation above and the standard entropy and enthalpy changes for the reaction are provided. When the reactants are combined at 25°C, essentially no CO2(g) or H2O(g) is produced after a few hours. Which of the diagrams above could best help explain the low yield of the reaction under these conditions, and why? A.)Diagram 1, because it represents a reaction that is not thermodynamically favorable with ΔG°>0, regardless of its reaction rate. B.)Diagram 1, because it represents a reaction that reaches equilibrium quickly after a very small amount of the reactants is consumed. C.)Diagram 2, because it represents a reaction with a high activation energy barrier for molecules to overcome and a very slow reaction rate, even if it is thermodynamically favorable with G°<0. D.)Diagram 2, because it represents a reaction that is thermodynamically favorable with ΔH°<0, but the products formed are unstable and quickly revert to form reactants.
The combustion of C2H5OH is represented by the equation above and the standard entropy and enthalpy changes for the reaction are provided. When the reactants are combined at 25°C, essentially no CO2(g) or H2O(g) is produced after a few hours. Which of the diagrams above could best help explain the low yield of the reaction under these conditions, and why?
A.)Diagram 1, because it represents a reaction that is not
B.)Diagram 1, because it represents a reaction that reaches equilibrium quickly after a very small amount of the reactants is consumed.
C.)Diagram 2, because it represents a reaction with a high activation energy barrier for molecules to overcome and a very slow reaction rate, even if it is thermodynamically favorable with G°<0.
D.)Diagram 2, because it represents a reaction that is thermodynamically favorable with ΔH°<0, but the products formed are unstable and quickly revert to form reactants.
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