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Based on the standard free energies of formation, which of the following reactions represent a feasible way to synthesize the product? Drag the appropriate items to their respective bins. Reset Help C(s) + O2(g)→CO2(g) AG; = -394.4 kJ/mol N2(g) + 202(g)¬→2NO2(g) AG; = 102.6 kJ/mol %3D N2(g) + O2(g)→2NO(g) AG; = 173.2 kJ/mol 2P(s) + 3C12(g)¬+2PC13(g) AG; = -267.8 kJ/mol %3D Feasible synthesis Not a feasible synthesis

Based on the standard free energies of formation, which of the following reactions represent a feasible way to synthesize the product? Drag the appropriate items to their respective bins. Reset Help C(s) + O2(g)→CO2(g) AG; = -394.4 kJ/mol N2(g) + 202(g)¬→2NO2(g) AG; = 102.6 kJ/mol %3D N2(g) + O2(g)→2NO(g) AG; = 173.2 kJ/mol 2P(s) + 3C12(g)¬+2PC13(g) AG; = -267.8 kJ/mol %3D Feasible synthesis Not a feasible synthesis

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Based on the standard free energies of formation, which of the following reactions represent a feasible way to synthesize the product? Drag the appropriate items to their respective bins. Reset Help C(s) + O2(g)→CO2(g) AG; = -394.4 kJ/mol N2(g) + 202(g)→+2NO2(g) AG; = 102.6 kJ/mol N2 (g) + O2(g)→2NO(g) AG; = 173.2 kJ/mol 2P(s) + 3C12 (g)¬→2PC13 (g) AG; = -267.8 kJ/mol Feasible synthesis Not a feasible synthesis
Transcribed Image Text:Based on the standard free energies of formation, which of the following reactions represent a feasible way to synthesize the product? Drag the appropriate items to their respective bins. Reset Help C(s) + O2(g)→CO2(g) AG; = -394.4 kJ/mol N2(g) + 202(g)→+2NO2(g) AG; = 102.6 kJ/mol N2 (g) + O2(g)→2NO(g) AG; = 173.2 kJ/mol 2P(s) + 3C12 (g)¬→2PC13 (g) AG; = -267.8 kJ/mol Feasible synthesis Not a feasible synthesis
The standard free energy of formation, AG?, of a substance is the free energy change for the formation of one mole of the substance from the component elements in their standard states. These values are applicable at 25 °C and are found in thermodynamic tables. The value of AG: for a substance gives a measure of the thermodynamic stability with respect to the component elements. Negative values for a formation reaction indicate thermodynamic stability of the product. In other words, the compound formed does not spontaneously decompose back into the component elements. Positive values for a formation reaction indicate thermodynamic instability of the product. Thus, the compound will spontaneously decompose, though the rate may be slow. The sign of AG; can be used to predict the feasibility of synthesizing a substance from its component elements. The standard free energy change for a reaction, AG°, is a state function and can be calculated from the standard free energies of formation as follows: ΔG Σ n, ΔG; (products) -Σn ΔG; (reactants) where np and n represent the stoichiometric coefficients in the balanced chemical equation for the reactants and products respectively.
Transcribed Image Text:The standard free energy of formation, AG?, of a substance is the free energy change for the formation of one mole of the substance from the component elements in their standard states. These values are applicable at 25 °C and are found in thermodynamic tables. The value of AG: for a substance gives a measure of the thermodynamic stability with respect to the component elements. Negative values for a formation reaction indicate thermodynamic stability of the product. In other words, the compound formed does not spontaneously decompose back into the component elements. Positive values for a formation reaction indicate thermodynamic instability of the product. Thus, the compound will spontaneously decompose, though the rate may be slow. The sign of AG; can be used to predict the feasibility of synthesizing a substance from its component elements. The standard free energy change for a reaction, AG°, is a state function and can be calculated from the standard free energies of formation as follows: ΔG Σ n, ΔG; (products) -Σn ΔG; (reactants) where np and n represent the stoichiometric coefficients in the balanced chemical equation for the reactants and products respectively.
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