(a)
Interpretation:
The residual entropy for a crystal consisting one mole of CO at T = 0 K should be calculated.
Concept introduction:
Entropy is a
S = entropy
kB = Boltzmann constant
W = number of microstates
x = possible orientations
N = number of molecules
(b)
Interpretation:
The residual entropy of one mole of H2O should be determined.
Concept introduction:
Entropy is a thermodynamic property related to how energy of the system is distributed among energy levels. The Boltzmann equation for entropy is
S = entropy
kB = Boltzmann constant
W = number of microstates
x = possible orientations
N = number of molecules
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EP GENERAL CHEMISTRY-MOD.MASTERINGCHEM.
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- Define the term entropy, and give an example of a sample of matter that has zero entropy. What are the units of entropy? How do they differ from the units of enthalpy?arrow_forwardWhat is the sign of the standard Gibbs free-energy change at low temperatures and at high temperatures for the explosive decomposition of TNT? Use your knowledge of TNT and the chemical equation, particularly the phases, to answer this question. (Thermodynamic data for TNT are not in Appendix G.) 2C7H5N3O6(s) 3N2(g) + 5H2O() + 7C(s) + 7CO(g)arrow_forwardThe third law of thermodynamics states that the entropy of a perfect crystal at 0 K is zero. In Appendix 4, F(aq), OH(aq), and S2(aq) all have negative standard entropy values. How can S values be less than zero?arrow_forward
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