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Answer to Question #54165 in Chemistry for Tomas
Question #54165
2. a. How will you decide whether a process is spontaneous in this experiment?
b. If you were to use this method after you had observed the fate of an ice cube at
25’C, what would you conclude about the spontaneity of the following process?
Why?
H20(s) H20(l)
c. The standard enthalpy change for this process is 6.01 kJ/mol. What is the
minimum value for the standard entropy change, based upon your conclusions
about the spontaneity?
3. During this experiment, you will be required to prepare 100 mL of a 1.0 M solution of
NaNO3. Calculate the mass of NaNO3 (to the nearest tenth of a gram) that will be
required?
b. If you were to use this method after you had observed the fate of an ice cube at
25’C, what would you conclude about the spontaneity of the following process?
Why?
H20(s) H20(l)
c. The standard enthalpy change for this process is 6.01 kJ/mol. What is the
minimum value for the standard entropy change, based upon your conclusions
about the spontaneity?
3. During this experiment, you will be required to prepare 100 mL of a 1.0 M solution of
NaNO3. Calculate the mass of NaNO3 (to the nearest tenth of a gram) that will be
required?
Expert's answer
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Predict the following reaction, whether its spontaneous or nonspontaneous: a.) 2NaOH (s) + CO2 (g) ---> Na2CO3 (s) + 2H2O (l) b.) 2Fe (s) + 3H20 (g) ---> Fe2O3 (s) + 3H2 (g)
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