Match each process below with the sign of the entropy change for the process. ...
Match each process below with the sign of the entropy change for the process.
|
|
Homework Answers
1)
Temperature is decreasing.
So, randomness will decrease.
Hence entropy change will be negative
Answer: B
2)
There are more gases on reactant side than one product side
So, entropy of reactant is more than that of product.
Hence entropy change will be negative
Answer: B
3)
entropy of gas > entropy of aqueous > entropy of liquid > entropy of solid
Solid is changing to liquid.
Hence entropy change will be positive
Answer: c
4)
Graphite has greater entropy because of free electrons as compared to diamond
Hence entropy change will be negative
Answer: B
Add Answer to:
Match each process below with the sign of the entropy change for
the process.
...
Which reaction or process has the greatest positive change in entropy, ∆S? H+(ag) + Cl-(ag) =>...
Which reaction or process has the greatest positive change in entropy, ∆S? H+(ag) + Cl-(ag) => HCl(g) 2C2H2(g) + 5O2(g) => 4CO2(g)+2H2O(l) 2Mg(s) + O2(g) => 2MgO(s) 2C2H2(g) + 5O2(g) => 4CO2(g)+2H2O(g) 2SO2(g) + O2(g) => 2SO3(g) The Chalk Point Maryland, generating station supplies electrical power to the Washington, D.C. area. Units 1 and 2 have a gross generating capacity of 710 MW (Megawatt). The stem pressure is 25x106 Pa, and the superheated outlet temperature (Th) is 5400C. The condensate...
Given the reactioon vessel and the balanced chemical reaction, what is the limiting reactant? Each symbol...
Given the reactioon vessel and the balanced chemical reaction, what is the limiting reactant? Each symbol represents 1 mol of molecules of the substance. 2C2H2(g) + 5O2(g) ----> 4CO2(g) + 2H2O(l) A. C2H2 B. O2 C. CO2 D. H2O
Predict the sign, increasing (+) or decreasing (-), of the entropy change (AS): + H2CO3 (aq)...
Predict the sign, increasing (+) or decreasing (-), of the entropy change (AS): + H2CO3 (aq) 31) 2C2H2 (g) + 502 (g) → 4CO2 (g) + 2H20 (9) 32) CO2 (g) + H20 (1) 33) KNO3 (5) → K+ (aq) 34) NO + 2HNO3 (1) ► H20 (1) + 3NO2 (g) + NO3- (aq)
Calculate ΔG0 for the following reactions at 25oC. (a) N2(g) + O2(g) → 2NO(g) ΔG0 =...
Calculate ΔG0 for the following reactions at 25oC. (a) N2(g) + O2(g) → 2NO(g) ΔG0 = kJ/mol (b) H2O(l) → H2O(g) ΔG0 = kJ/mol (c) 2C2H2(g) + 5O2(g) → 4CO2(g) + 2H2O(l) ΔG0 = kJ/mol
3. Predict the sign (positive or negative) on the entropy change for each of these reactions....
3. Predict the sign (positive or negative) on the entropy change for each of these reactions. (a) 2 SO2 (g) + O2 (g) → 2 SO3 (g) Negative (b) 2 NH3 (g) → N2 (g) + 3 H2 (g) (c) CO (g) + 2 H2 (g) → CH3OH (1) 4. For the reaction: 2NO2 (g) + N204 (g) at 298 K, The value of AH° and AS™ are -58.03 kJ and -176.6J/K, respectively. (a) What is the value of AG°...
I. Classify each of the following reactions as: A) combination, B) decomposition, C) combustion, D) single...
I. Classify each of the following reactions as: A) combination, B) decomposition, C) combustion, D) single displacement and E) double displacement ___________________________________1. 2Al2O3 → 4Al + 3O2 ___________________________________2. Br2 + BaI2 → BaBr2 + I2 _________________________________________3. 2C2H2 + 5O2 → 4CO2 + 2H2O + energy ___________________________________4. BaCl2 + K2CO3 → BaCO3 + 2KCl ___________________________________5. Pb + O2 → PbO2 ___________________________________6. H2 + Br2 → 2HBr ___________________________________7. AgNO3 + NaCl → AgCl + NaNO3 ___________________________________8. 2H2O2 → 2H2O + O2 ___________________________________9. Zn + CuCl2 → Cu + ZnCl2 ___________________________________10. C5H8 + 7O2 → 5CO2 + 4H2O + energy ___________________________________11. CuO + 2HCl → CuCl2 + H2O ___________________________________12. 2Al + 3Br2 → 2AlBr3 ___________________________________13. 2C2H2 + 5O2 → 4CO2 + 2H2O + energy ___________________________________14. Fe2O3 + 3C → 2Fe + 3CO ___________________________________15. C6H12O6 → 2C2H6O + 2CO2
which process is associated with a negative entropy change? why? A) NaCl(s) -> Na+(aq) + Cl-(aq)...
which process is associated with a negative entropy change? why? A) NaCl(s) -> Na+(aq) + Cl-(aq) B) N2(g) + 3H2(g) -> 2NH3(g) C) 2BrCl(l) -> Br2(l) + Cl2(g) D) H2O (l) -> H2O (g)
Predict the sign of the entropy change, ?S?, for each of the reaction displayed. Drag the appropriate items to their re...
Predict the sign of the entropy change, ?S?, for each of the reaction displayed. Drag the appropriate items to their respective bins. Ba2+(aq)+SO42?(aq)?BaSO4(s) 2NaClO3(s)?2NaCl(s)+3O2(g) 2N2O(g)?2N2(g)+O2(g) 2H2(g)+O2(g)?2H2O(l) C7H16(g)+11O2(g)?7CO2(g)+8H2O(g) H2O(l)?H2O(g) Positive Negative
An ideal gas is compressed and cooled. For this process the entropy of the gas a....
An ideal gas is compressed and cooled. For this process the entropy of the gas a. Increases b. Decreases c. Stays the same d. Cannot be determined from the information given Thermodynamics
The change in entropy, ΔS°rxn, is related to the the change in the number of moles...
The change in entropy, ΔS°rxn, is related to the the change in the number of moles of gas molecules, Δngas. Determine the change in the moles of gas for each of the following reactions and decide if the entropy increases, decreases, or has little or no change. a) 2H2(g) +O2(g)->2H2O b)C2H4(g) +H2(g)-> C2H6(g) c) CH4(g) + 2O2(g) -> CO2(g)+2H2O(l) d) PCL5(s)--> PCL3(l) + CL2(g)
Predict the sign, increasing (+) or decreasing (-), of the entropy change (AS): + H2CO3 (aq) 31) 2C2H2 (g) + 502 (g) → 4CO2 (g) + 2H20 (9) 32) CO2 (g) + H20 (1) 33) KNO3 (5) → K+ (aq) 34) NO + 2HNO3 (1) ► H20 (1) + 3NO2 (g) + NO3- (aq)
3. Predict the sign (positive or negative) on the entropy change for each of these reactions. (a) 2 SO2 (g) + O2 (g) → 2 SO3 (g) Negative (b) 2 NH3 (g) → N2 (g) + 3 H2 (g) (c) CO (g) + 2 H2 (g) → CH3OH (1) 4. For the reaction: 2NO2 (g) + N204 (g) at 298 K, The value of AH° and AS™ are -58.03 kJ and -176.6J/K, respectively. (a) What is the value of AG°...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 10 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 10 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 10 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 10 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 10 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 10 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 10 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 10 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 10 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 10 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 10 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 10 months ago