the first law of thermodynamics states that __________ is conserved. a.matter b.energy c.entropy...
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![Page 1: The first law of thermodynamics states that __________ is conserved. a.matter b.energy c.entropy d.temperature](https://reader035.vdocument.in/reader035/viewer/2022081008/56649eb05503460f94bb636b/html5/thumbnails/1.jpg)
The first law of thermodynamics states that __________ is conserved.
a. matter
b. energy
c. entropy
d. temperature
![Page 2: The first law of thermodynamics states that __________ is conserved. a.matter b.energy c.entropy d.temperature](https://reader035.vdocument.in/reader035/viewer/2022081008/56649eb05503460f94bb636b/html5/thumbnails/2.jpg)
The first law of thermodynamics states that __________ is conserved.
a. matter
b. energy
c. entropy
d. temperature
![Page 3: The first law of thermodynamics states that __________ is conserved. a.matter b.energy c.entropy d.temperature](https://reader035.vdocument.in/reader035/viewer/2022081008/56649eb05503460f94bb636b/html5/thumbnails/3.jpg)
Entropy is a measure of the __________ of a system.
a. randomness
b. internal energy
c. temperature
d. polarity
![Page 4: The first law of thermodynamics states that __________ is conserved. a.matter b.energy c.entropy d.temperature](https://reader035.vdocument.in/reader035/viewer/2022081008/56649eb05503460f94bb636b/html5/thumbnails/4.jpg)
Entropy is a measure of the __________ of a system.
a. randomness
b. internal energy
c. temperature
d. polarity
![Page 5: The first law of thermodynamics states that __________ is conserved. a.matter b.energy c.entropy d.temperature](https://reader035.vdocument.in/reader035/viewer/2022081008/56649eb05503460f94bb636b/html5/thumbnails/5.jpg)
Since entropy is a state function, the change in entropy is equal to its final value __________ its initial value.
a. plus
b. minus
c. multiplied by
d. divided by
![Page 6: The first law of thermodynamics states that __________ is conserved. a.matter b.energy c.entropy d.temperature](https://reader035.vdocument.in/reader035/viewer/2022081008/56649eb05503460f94bb636b/html5/thumbnails/6.jpg)
Since entropy is a state function, the change in entropy is equal to its final value __________ its initial value.
a. plus
b. minus
c. multiplied by
d. divided by
![Page 7: The first law of thermodynamics states that __________ is conserved. a.matter b.energy c.entropy d.temperature](https://reader035.vdocument.in/reader035/viewer/2022081008/56649eb05503460f94bb636b/html5/thumbnails/7.jpg)
Entropy decreases when:
a. gases are formed from liquids.
b. liquids are formed from solids.
c. solids are formed from gases.
d. the number of gas molecules increases during a chemical reaction.
![Page 8: The first law of thermodynamics states that __________ is conserved. a.matter b.energy c.entropy d.temperature](https://reader035.vdocument.in/reader035/viewer/2022081008/56649eb05503460f94bb636b/html5/thumbnails/8.jpg)
Entropy decreases when:
a. gases are formed from liquids.
b. liquids are formed from solids.
c. solids are formed from gases.
d. the number of gas molecules increases during a chemical reaction.
![Page 9: The first law of thermodynamics states that __________ is conserved. a.matter b.energy c.entropy d.temperature](https://reader035.vdocument.in/reader035/viewer/2022081008/56649eb05503460f94bb636b/html5/thumbnails/9.jpg)
The third law of thermodynamics states that the entropy of a pure, perfect crystalline substance at absolute zero (0 K) is:
a. infinite.
b. increasing.
c. decreasing.
d. zero.
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The third law of thermodynamics states that the entropy of a pure, perfect crystalline substance at absolute zero (0 K) is:
a. infinite.
b. increasing.
c. decreasing.
d. zero.
![Page 11: The first law of thermodynamics states that __________ is conserved. a.matter b.energy c.entropy d.temperature](https://reader035.vdocument.in/reader035/viewer/2022081008/56649eb05503460f94bb636b/html5/thumbnails/11.jpg)
H = enthalpy. S = entropy. T = Kelvin temperature. The Gibbs free energy, G, is:
a. H + TS
b. H – TS
c. H x TS
d. H / TS
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H = enthalpy. S = entropy. T = Kelvin temperature. The Gibbs free energy, G, is:
a. H + TS
b. H – TS
c. H x TS
d. H / TS
![Page 13: The first law of thermodynamics states that __________ is conserved. a.matter b.energy c.entropy d.temperature](https://reader035.vdocument.in/reader035/viewer/2022081008/56649eb05503460f94bb636b/html5/thumbnails/13.jpg)
The value of ∆G, the Gibbs free energy change, for a system at equilibrium is:
a. positive.
b. negative.
c. rapidly fluctuating from positive to negative.
d. zero.
![Page 14: The first law of thermodynamics states that __________ is conserved. a.matter b.energy c.entropy d.temperature](https://reader035.vdocument.in/reader035/viewer/2022081008/56649eb05503460f94bb636b/html5/thumbnails/14.jpg)
The value of ∆G, the Gibbs free energy change, for a system at equilibrium is:
a. positive.
b. negative.
c. rapidly fluctuating from positive to negative.
d. zero.
![Page 15: The first law of thermodynamics states that __________ is conserved. a.matter b.energy c.entropy d.temperature](https://reader035.vdocument.in/reader035/viewer/2022081008/56649eb05503460f94bb636b/html5/thumbnails/15.jpg)
A reaction will be spontaneous at lower temperatures when the sign
of H and S is
![Page 16: The first law of thermodynamics states that __________ is conserved. a.matter b.energy c.entropy d.temperature](https://reader035.vdocument.in/reader035/viewer/2022081008/56649eb05503460f94bb636b/html5/thumbnails/16.jpg)
A reaction will be spontaneous at lower temperatures when the sign
of H and S is
![Page 17: The first law of thermodynamics states that __________ is conserved. a.matter b.energy c.entropy d.temperature](https://reader035.vdocument.in/reader035/viewer/2022081008/56649eb05503460f94bb636b/html5/thumbnails/17.jpg)
Upon heating, limestone (CaCO3) decomposes to CaO and CO2. Speculate on the sign of H and S for this
process. CaCO3(s) CaO(s) + CO2(g)
![Page 18: The first law of thermodynamics states that __________ is conserved. a.matter b.energy c.entropy d.temperature](https://reader035.vdocument.in/reader035/viewer/2022081008/56649eb05503460f94bb636b/html5/thumbnails/18.jpg)
Upon heating, limestone (CaCO3) decomposes to CaO and CO2. Speculate
on the sign of H and S for this process.
CaCO3(s) CaO(s) + CO2(g)