19. Chemical Thermodynamics

Which of the following pairs of reactants will result in a spontaneous redox reaction at 25°C?

Which of the following pairs of reactants will result in a spontaneous redox reaction at 25°C?

The following reaction is spontaneous at room temperature: C3H8(g) + 5O2(g) → 3CO2(g) + 4H2O(g). Which of the following is true about the enthalpy (ΔH) and entropy (ΔS) changes for this reaction?

The process of iron being oxidized to make iron(III) oxide (rust) is spontaneous. Which of these statements about this process is true?

The reaction between carbon tetrachloride (CCl4) and water (H2O) to form carbon dioxide (CO2) and hydrogen chloride (HCl) has a ΔG° value of -232 kJ/mole, indicating it is thermodynamically favored. However, when you mix carbon tetrachloride with water, what occurs?

We do not observe the diamond converting to graphite under normal conditions. Which of the following is the correct explanation?

We do not observe the diamond converting to graphite under normal conditions. Which of the following is the correct explanation?

What can be said about an endothermic reaction with a negative entropy change in terms of spontaneity?

Which of the following processes is spontaneous?

Which of the following statements is true regarding spontaneous reactions?

Which of the following processes is spontaneous?

Which of the following statements is true regarding the relationship between spontaneity and reaction rate?

At what temperature does a reaction become spontaneous at standard conditions if only the Gibbs free energy change (ΔG) is known?