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Valduarte07
10.05.2021 •
Chemistry
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Substance ΔG°f at 298K(kJ/mol)
H2O(l) −237.2
H2O(g) −228.4
(a) Using the information in the table above, determine the value of ΔG° at 298K for the process represented by the equation H2O(l)⇄H2O(g).
Question 2
(b) Considering your answer to part (a), indicate whether the process is thermodynamically favorable at 298K. Justify your answer.
Question 3
(c) Considering your answer to part (b), explain why H2O(l) has a measurable equilibrium vapor pressure at 298K.
Question 4
Water vapor can be produced in two different processes, as represented below.
Process 1 Process 2
H2O(s)⇄H2O(g) H2O(l)⇄H2O(g)
(d) In terms of concepts of entropy and the particle-level structure of the different phases of water, explain why the change in entropy, ΔS, is greater for process 1 than for process 2.
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Ответ:
mechanical advantage
Explanation: