Answer to Question #151110 in Inorganic Chemistry for Ananya

Question #151110
4. a. Consider the data below for the reaction H2O(l) ⇌ H2O(g) .

Plot a graph and determine ΔH and ΔS for the reaction. Describe how they influence the
spontaneity of the reaction as a function of temperature.
T (°C) P (torr)
0.0 4.579
10.0 9.209
20.0 17.53
25.0 23.76
30.0 31.82
40.0 55.32
60.0 149.4
70.0 233.7
90.0 525.8

b. Explain how the boiling point temperature of H2O(l) (at sea level) can be accurately determined from the data in a.?

c. For the reaction in a., ΔE is less than ΔH. Explain.
Expert's answer

The spontaneity of the reaction depends on the temperature. The higher the temperature, the more spontaneous the reaction is.

b. From the Gibbs free energy

c. ΔE is less than ΔH because the number of mole of the reactants used is lesser than that of products produced

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