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    Entropy Changes and Equilibrium states

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    CHM4
    1- Calculate the standard entropy change for the reaction
    2Na(s)+Cl 2 (g)→2NaCl(s)
    using the data from the following table:
    Substance ΔH ∘ f (kJ/mol)
    ΔG ∘ f (kJ/mol)
    S ∘ [J/(K⋅mol)]

    Na(s)
    0.00 0.00 51.30
    Cl 2 (g)
    0.00 0.00 223.1
    NaCl(s)
    -411.0 -384.0 72.10
    Express your answer to four significant figures and include the appropriate units.

    2 - Use data from Appendix IIB in the textbook to calculate the equilibrium constants at 25 ∘ C for each reaction.2H 2 S(g)⇌2H 2 (g)+S 2 (g) Express your answer using two significant figures.I have provided the data below.

    delta G for N2 - 0
    delta H for N2 - 0
    delta S for N2 - 191.6

    delta G for O2 - 0
    delta H for O2 - 0
    S for O2 - 205.2

    delta G for 2NO - 87.6
    delta H for 2NO - 91.3
    S for 2NO - 210.8

    Consider the reaction:
    I 2 (g)+Cl 2 (g)⇌2ICl(g)
    K p = 81.9 at 25 ∘ C .
    Calculate ΔG rxn for the reaction at 25 ∘ C under each condition:
    Part A: standard conditions Express your answer using one decimal place and in kJ
    Part B: at equilibrium
    Part C:
    P ICl = 2.55atm ;
    P I 2 = 0.315atm ;
    P Cl 2 = 0.219atm .
    Express your answer using one decimal place and in kJ

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    https://brainmass.com/chemistry/general-chemistry/entropy-changes-equilibrium-states-553983

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    CHM4
    1- Calculate the standard entropy change for the reaction
    2Na(s)+Cl 2 (g)→2NaCl(s)
    using the data from the following table:
    Substance ΔH ∘ f (kJ/mol)
    ΔG ∘ f (kJ/mol)
    S ∘ [J/(K⋅mol)]

    Na(s)
    0.00 0.00 51.30
    Cl 2 (g)
    0.00 0.00 223.1
    NaCl(s)
    -411.0 -384.0 72.10
    Express your answer to four significant figures and include the appropriate units.
    ΔSo = [2 x ...

    Solution Summary

    The expert examines entropy changes and equilibrium states.

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