The deciding factor on why HF is a weak acid and not a strong acid like the other hydrogen halides is entropy. What occurs when HF dissociates in water as compared to the other hydrogen halides?
Answer to relevant QuestionsThe third law of thermodynamics states that the entropy of a perfect crystal at 0 K is zero. In Appendix 4, F-(aq), OH-(aq), and S2-(aq) all have negative standard entropy values. How can S8 values be less than zero? Consider the isothermal expansion of 1.00 mole of ideal gas at 27oC. The volume increases from 30.0 L to 40.0 L. Calculate q, w, ΔE, ΔH, ΔS, and ΔG for two situations: a. a free expansion b. a reversible expansion You have a 1.00- L sample of hot water (90oC) sitting open in a 25oC room. Eventually the water cools to 25oC, whereas the temperature of the room remains unchanged. Calculate ΔSuniv for this process. Assume the density of ...Consider the reaction 2CO(g) + O2(g) → 2CO2(g) a. Using data from Appendix 4, calculate K at 298 K. b. What is ΔS for this reaction at T = 298 K if the reactants, each at 10.0 atm, are changed to products at 10.0 atm? ...Consider the following illustration of six molecules of gas in a two-bulbed flask a. What is the most likely arrangement of molecules? How many microstates are there for this arrangement? b. Determine the probability of ...
Post your question