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Entropy
Page 4
Questions (178)
2 moles of ideal gas at 300K, initial volume 25 L, are compressed under an external pressure at 3600 torr. Assuming the temp and
2 answers
asked by
Jordan
541 views
Standard entropies for substances are defined at a pressure of exactly 1 bar or exactly 1 atm in different books. For gases,
1 answer
asked by
Jennifer
530 views
4 moles of water are heated from 240 K to 310. find delta entropy and graph entropy against K . Info : delta H fusion of water
2 answers
asked by
kat
546 views
Consider the reaction:
N2(g) + 3H2(g) ¡ú 2NH3(g) question: calculate ¦¤S¡ã in J¡¤K-1.
2 answers
asked by
Roxanne
519 views
Using data in table below and S °(CaSO4·H2O(s))= 194.0 J·mol-1·K-1, calculate Delta fS° for CaSO4·H2O(s) in J·mol-1·K-1.
2 answers
asked by
zacky
530 views
14. 100 g of water, H2O, is heated from 25C to 50C. What is the entropy change for
the process? Cp = 4.2J/K·mol for water?
2 answers
asked by
EBB
528 views
I don't understand this question...
What is the change in entropy for a system that has 250 J of heat added to it at 25°C?
2 answers
asked by
Me and I
500 views
A reaction has delta H_rxn= -125 kJ and delta S_rxn= 324 J/K.
At what temperature is the change in entropy for the reaction equal
2 answers
asked by
Kyle
503 views
Identify the compound with the highest entropy.
a. solid ice b. room temperature water c. gaseous water d. frozen water
1 answer
asked by
Adryan
498 views
When CH3OH at its normal boiling point, does its entropy increase or decrease? Explain.
- My opinion The entropy decreases
1 answer
asked by
Liam
500 views
Calculate ∆S universe for the process H2O (s) → H2O (l) given that
∆Hfusion = 6.02 kJ/mol and ∆S system = 22.1 J/K mol .
1 answer
asked by
Mi
480 views
A 66000 kg iceberg at −6.7◦C breaks away
from the polar ice shelf and floats away into the ocean at 6.36◦C. What is the
1 answer
asked by
asdf
494 views
Calculate the entropy increase in the evaporation of 1 mole of a liquid when it boils at 100 degree centigrade having heat of
2 answers
asked by
charu
482 views
f the ΔH of fusion for aluminum is 10.9 kJ/mol and the ΔH of vaporization is 284 kJ/mol, then what is the change in entropy
1 answer
asked by
Jason
464 views
Calculate the increase of entropy in J/K when 8.6 mole of C
2 H 5 OH melts at (-114) o C and 1 atm. ΔH fus = 5.02 kJ/mol
1 answer
asked by
carl
485 views
One end of a metal rod is in contact with a thermal reservoir at 731 K, and the other end is in contact with a thermal reservoir
1 answer
asked by
maria
454 views
Consider a liquid at 90 bar and 40 °C. What is the change in entropy of the substance as you change the conditions to 1 bar and
1 answer
asked by
pirate
453 views
Calculate the entropy change of the universe (in J/K) when 12.2 g of chlorine are melted in a laboratory at 24.8 oC. Report your
1 answer
asked by
Jayme
456 views
Using data in table below and S °(NaCl(s))= 72.38 J·mol-1·K-1, calculate ÄfS° for NaCl(s) in J·mol-1·K-1.
Compound S °,
1 answer
asked by
Roxanne
462 views
A container is initially partitioned by a wall into two compartments. The left compartment has volume V1 and the right
1 answer
asked by
Paul
441 views
Determine the entropy change for the following displacement reaction
Cl2(g) + PbBr2(aq) --> PbCl2(aq) + Br2(l
1 answer
asked by
lekeith
445 views
Entropy involves losing energy over time.
1 answer
asked anonymously
10 views
What is the only way that entropy can decrease in a system?
a. If work is put into the system. b. If energy is decreased from the
1 answer
asked by
bon
25 views
How do we qualitatively rank influences on entropy? A) Phase B) Molecular Complexity C) Molar Quantity D) They all influence
1 answer
asked anonymously
10 views
phase vs molecular complexity, which has more influence on entropy
1 answer
asked anonymously
7 views
Place the following in order of decreasing molar entropy at 298 K.
Thermo3 H2 > Cl2 > F2 F2 > Cl2 > H2 H2 > F2 > Cl2 Cl2 > F2 >
1 answer
asked anonymously
19 views
Which one of the following has the highest standard molar entropy, S°, at 25°C?
N2(g) F2(g) Cl2(g) O2(g) H2(g)
1 answer
asked anonymously
13 views
Which has the greatest entropy?
0.75 M MgCl2(aq) 1.0 L H20(l) 3.2 M N2(aq) 3.4 M O2(aq) 1.2 M O2(aq)
1 answer
asked anonymously
9 views
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Parent Categories (19)
Chemistry
Energy and Thermodynamics
Gas Laws
Heat Transfer
Ideal Gas Laws
Information Theory
Phase Changes
Physics
Probability and Statistics
Properties of substances
Reactions
Solid State Physics
Solution Chemistry
Solutions
States of Matter
Stoichiometry
Thermochemistry
Thermodynamics
Thermodynamics and Chemical Reactions