Calculate ΔHo and ΔSo at 25oC for the reaction 2SO2(g) + O2(g) → 2SO3(g) at a constant pressure of 1.00 atm using thermodynamic data in Appendix 4. Also calculate ΔHo and ΔSo at 227oC and 1.00 atm, assuming that the constant- pressure molar heat capacities for SO2(g), O2(g), and SO3(g) are 39.9 J K-1mol-1, 29.4 JK-1mol-1, and 50.7 J K-1mol-1, respectively. (Hint: Construct a thermodynamic cycle, and consider how enthalpy and entropy depend on temperature.)
Answer to relevant QuestionsAlthough we often assume that the heat capacity of a substance is not temperature dependent, this is not strictly true, as shown by the following data for ice: Use these data to calculate graphically the change in entropy ...Define the following. a. Spontaneous process b. Entropy c. Positional probability d. System e. Surroundings f. Universe Phosphate buffers are important in regulating the pH of intracellular fluids at pH values generally between 7.1 and 7.2. a. What is the concentration ratio of H2PO4- to HPO4-2 in intracellular fluid at pH = 7.15? H2PO4 2(aq) ...Sketch the titration curve for the titration of a generic weak base B with a strong acid. The titration reaction is B + H+ ⇌ BH+ On the curve indicate the points that correspond to the following. a. The stoichiometric ...You have 75.0 mL of 0.10 M HA. After adding 30.0 mL of 0.10 M NaOH, the pH is 5.50. What is the Ka value of HA?
Post your question