Consider a Mixture of Three Gases in the Following Reaction

question 20

Multiple Choice

Consider a mixture of three gases in the following reaction and the reaction s corresponding Standard Molar Gibbs Free Energy:
2 HI (g) H₂ (g) + I₂ (g) D G = 16.8 KJ/mol If the partial pressures of the three gases are P HI = 2.50 atm, PH ₂= 3.5 atm and P I2 = 4.5 atm at 400 K, what is D G under these non-standard conditions ?

• A) D G = 13.7 KJ/mol
• B) D G = 17.4 KJ/mol
• C) D G = 18.1 KJ/mol
• D) D G = 19.9 KJ/mol
• E) D G = 21.8 KJ/mol

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