Entropy Changes and Equilibrium states
Not what you're looking for?
See Attachment for questions and Data
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
Purchase this Solution
Solution Summary
The expert examines entropy changes and equilibrium states.
Solution Preview
Please See the attachment for the solutions
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 ...
Purchase this Solution
Free BrainMass Quizzes
Functional groups in Organic Chemistry
You will be tested on the names of functional groups in Organic Chemistry. It is very important to know the functional groups to understand Organic reactions.
Match Elements with their Symbols
Elements are provided: choose the matching one- or two-letter symbol for each element.
Organic Chemistry Naming: Alkanes
This is a quiz which is designed to assist students with learning the nomenclature used to identify organic compounds. This quiz focuses on the organic compounds called Alkanes.
General Chemistry - Classification of Matter
This test will assess your knowledge on the classification of matter which includes elements, compounds and mixtures.