The sign of ΔS sys change expected for given vaporization process has to be predicted. Concept introduction: Entropy change: The sign of ΔS o for a reaction is determined by using the following rules: When a molecule is broken down and gives two or more smaller molecules. When the moles of gas is increases (by the breaking of molecules) Solid changes to liquid or gas state or liquid state changes to gas state. Entropy ( S ) : it is used to describe the disorder. It is the amount of arrangements possible in a system at a particular state. If the disorder increases in a system, then Δ S > 0 positive If the disorder decreases in a system, then Δ S < 0 negative If the disorder equal in a system, then Δ S = 0
The sign of ΔS sys change expected for given vaporization process has to be predicted. Concept introduction: Entropy change: The sign of ΔS o for a reaction is determined by using the following rules: When a molecule is broken down and gives two or more smaller molecules. When the moles of gas is increases (by the breaking of molecules) Solid changes to liquid or gas state or liquid state changes to gas state. Entropy ( S ) : it is used to describe the disorder. It is the amount of arrangements possible in a system at a particular state. If the disorder increases in a system, then Δ S > 0 positive If the disorder decreases in a system, then Δ S < 0 negative If the disorder equal in a system, then Δ S = 0
Definition Definition Substance that constitutes everything in the universe. Matter consists of atoms, which are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction: solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).
Chapter 20, Problem 20.13P
(a)
Interpretation Introduction
Interpretation:
The sign of ΔSsys change expected for given vaporization process has to be predicted.
Concept introduction:
Entropy change:
The sign of ΔSo for a reaction is determined by using the following rules:
When a molecule is broken down and gives two or more smaller molecules.
When the moles of gas is increases (by the breaking of molecules)
Solid changes to liquid or gas state or liquid state changes to gas state.
Entropy(S): it is used to describe the disorder. It is the amount of arrangements possible in a system at a particular state.
If the disorder increases in a system, then ΔS>0 positive
If the disorder decreases in a system, then ΔS<0 negative
If the disorder equal in a system, then ΔS=0
(b)
Interpretation Introduction
Interpretation:
The sign of the entropy ΔSsys change expected for given process that hot air expands has to be predicted.
Concept introduction:
Entropy change:
The sign of ΔSo for a reaction is determined by using the following rules:
When a molecule is broken down and gives two or more smaller molecules.
When the moles of gas is increases (by the breaking of molecules)
Solid changes to liquid or gas state or liquid state changes to gas state.
Entropy(S): it is used to describe the disorder. It is the amount of arrangements possible in a system at a particular state.
If the disorder increases in a system, then ΔS>0 positive
If the disorder decreases in a system, then ΔS<0 negative
If the disorder equal in a system, then ΔS=0
(c)
Interpretation Introduction
Interpretation:
The sign of the entropy ΔSsys change expected for given process that condensation of humidity in cold air has to be predicted.
Concept introduction:
Entropy change:
The sign of ΔSo for a reaction is determined by using the following rules:
When a molecule is broken down and gives two or more smaller molecules.
When the moles of gas is increases (by the breaking of molecules)
Solid changes to liquid or gas state or liquid state changes to gas state.
Entropy(S): it is used to describe the disorder. It is the amount of arrangements possible in a system at a particular state.
If the disorder increases in a system, then ΔS>0 positive
If the disorder decreases in a system, then ΔS<0 negative
Draw a structure using wedges and dashes for the following compound:
H-
Et
OH
HO-
H
H-
Me
OH
Which of the following molecules are NOT typical carbohydrates? For the molecules that are
carbohydrates, label them as an aldose or ketose.
HO
Он
ОН ОН
Он
ОН
но
ΤΗ
HO
ОН
HO
eve
Он он
ОН
ОН
ОН
If polyethylene has an average molecular weight of 25,000 g/mol, how many repeat units
are present?
Draw the a-anomer cyclized pyranose Haworth projection of the below hexose. Circle the
anomeric carbons. Number the carbons on the Fischer and Haworth projections. Assign R
and S for each chiral center.
HO
CHO
-H
HO
-H
H-
-OH
H
-OH
CH₂OH
Draw the ẞ-anomer cyclized furanose Haworth projection for the below hexose. Circle the
anomeric carbons. Number the carbons on the Fischer and Haworth projections.
HO
CHO
-H
H
-OH
HO
-H
H
-OH
CH₂OH
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The Laws of Thermodynamics, Entropy, and Gibbs Free Energy; Author: Professor Dave Explains;https://www.youtube.com/watch?v=8N1BxHgsoOw;License: Standard YouTube License, CC-BY