Homework Answers
a)
Since reaction is endothermic,
ΔHo is positive
ΔSo is negative because there are more gases in reactant side of reaction than in product side.
ΔGo = ΔHo - T*ΔSo
For reaction to be spontaneous, ΔGo should be negative
Here
ΔHo is negative
ΔSo is negative
So,
ΔGo will be negative at low temperature.
The reaction is spontaneous at low temperature.
Answer: low temperatures
b)
Since reaction is exothermic,
ΔHo is negative
ΔSo is negative because there are more gases in reactant side of reaction than in product side.
ΔGo = ΔHo - T*ΔSo
For reaction to be spontaneous, ΔGo should be negative
Here
ΔHo is positive
ΔSo is negative
So,
ΔGo will always be positive.
The reaction is spontaneous at no temperature.
Answer: not spontaneous at any temperatures
c)
Since reaction is exothermic,
ΔHo is negative
ΔSo is positive because there are more gases in product side of reaction than in reactant side.
ΔGo = ΔHo - T*ΔSo
For reaction to be spontaneous, ΔGo should be negative
Here
ΔHo is positive
ΔSo is positive
So,
ΔGo will be negative at high temperature.
The reaction is spontaneous at high temperature.
Answer: at high temperature
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State whether following reactions are spontaneous at all temperatures, low temperatures, high temperatures or not spontaneous...
14. For the following reactions, predict whether they will tend to be spontaneous at high, low,...
14. For the following reactions, predict whether they will tend to be spontaneous at high, low, all temperatures, or non-spontaneous at any temperature (10 points) a) An "instant ice-pack" type of reaction where AS > 0, and AH > 0 b) 3A (1) ► B(s) + C(1) + D(g), AH < 0 c) 2A(s) → B(g) + C(1), AH > 0
16. For the following reactions, predict whether they will tend to be spontaneous at either high...
16. For the following reactions, predict whether they will tend to be spontaneous at either high or low temperatures, or at all temperatures, or at no temperature (10.0 points) a) H2(g) + 12(g) → 2HI(g) AH = -220 kJ b) 3S2(g) → 253(g) AH = +227 kJ c) H2O(l) → H2O(g) AH = +44 kJ d) H2(g) + '/gS8(g) → H2S(1) AH = -247 kJ
Question 6 1.5 pts Predict under what temperatures (all temperatures, low temperatures, or high temperatures), if any,...
Question 6 1.5 pts Predict under what temperatures (all temperatures, low temperatures, or high temperatures), if any, the following reactions will be spontaneous. A. 2CO(g) + O2(g) = 2002(g), AH rxn=-566.0 kJ [ Select] B. 2NO2(g)2NO(g)+O2(g), AH rxn= +113.1 kJ [ Select ] C. 2H2(g)+O2(g)—2H2O(g), AH rxn=-483.6 kJ [ Select] D. 2H2O2(1)→2H2O(1)+O2(g), AH rxn= -196.0 kJ [Select ]
Tedict and explain whether the follo ind explain whether the following reactions will be nonspontaneous at all temp...
Tedict and explain whether the follo ind explain whether the following reactions will be nonspontaneous at all temperatures or spontaneous at all, low, or high temperatures. (a) 2POCI(8) ► 2PC(s) + O2(8) Air - 572 3; AS - 179 3K (b) 302(g) → 203(g) AF - 286 kJ; AS = -1373/ (c) 4NH3(g) + 502(g) → 4NO(g) + 6H2O() AH = -1274 kJ; AS = 180 J/K (d) 2PbS(s) + 302(g) → 2PbO(s) + 2502(8) AH = -844 kJ; AS...
Question 3 1 pts Predict under what temperatures (all temperatures, low temperatures, or high temperatures), if...
Question 3 1 pts Predict under what temperatures (all temperatures, low temperatures, or high temperatures), if any, the reaction will be spontaneous. A. AS rxn= +100 J/K; AH rxn= +150 kJ [ Select] B. AS rxn= - 100 J/K; AH rxn= +200 kJ [Select]
the first one is supposed to be meant spontaneous. thanks ction to be non-spontaneous at any...
the first one is supposed to be meant spontaneous. thanks
ction to be non-spontaneous at any temperature, which of the following В. Tur a chemical reaction to b conditions must be met? AS > 0, AITO AS > 0, AIT <0 AS <0, AHP <0 AS <0, AHP>0 D. 2. Place the following in on lowing in order of decreasing standard molar entropy. N204(8) NO(g) NO2(g) 204 > NO2 > NO B) NO > NO2 > N204 E) NO2 >...
Question 5 1 pts Predict under what temperatures (all temperatures, low temperatures, or high temperatures), if...
Question 5 1 pts Predict under what temperatures (all temperatures, low temperatures, or high temperatures), if any, the reaction will be spontaneous. A. 4NO(g)+6H2O(g) 4NH3(g)+502(g) AHrxn=+906kJ [Select] B. 2N2O(g)+O2(g)-4NO(g) AH rxn=+197.1kJ [Select] C. C3H3(g)+502(g)-3CO2(g)+4H2O(g) AH rxn=-2044kJ Spontaneous at all temperatura A
Exercise 18.38-Enhanced-with Feedback 7 of 13> Part E ReviewI ConstantsI Periodic Table In addition, predict under what temperatures (all temperatures, low temperatures, or high temperatures), if...
Exercise 18.38-Enhanced-with Feedback 7 of 13> Part E ReviewI ConstantsI Periodic Table In addition, predict under what temperatures (all temperatures, low temperatures, or high temperatures), if any the reaction in each part will be spontaneous. Without doing any calculations, iddentify the signs of ΔSays and ΔSsurr for each of the following chemical reactions. Drag the appropriate items to their respective bins. Reset Help Reaction is spontaneous at all temperatures Reaction is spontaneous at low temperatures Reaction is spontaneous at high...
4. Classify each of the following reactions as one of these four types: • spontaneous at...
4. Classify each of the following reactions as one of these four types: • spontaneous at all temperatures • not spontaneous at any temperature spontaneous below a certain temperature but not above • spontaneous above a certain temperature but not below See Table 17.1 in Tro, Fridgen and Shaw. AS = -198.8 J/K AH = 924 kJ; AS = (a) N2(g) + 3 H2(g) → 2 NH, (g); AH = -92.2 kJ; (b) 2 Na O (s) + 5 CO2(g)...
please answer 9a,b,c,d 9. For the following reactions, predict whether they will tend to be spontaneous...
please answer 9a,b,c,d
9. For the following reactions, predict whether they will tend to be spontaneous at high, low, ali temperatures, or non-spontaneous at any temperature (10 points) a) 2A(g) + 3B(9) C(g) + D(1), AH < 0 b) A() + B() (1) + D(s) AH > 0 c) A(s) + B(1) ► 20(1), AH < 0 d) 2A(s) B(s) + C(I), AH > 0
14. For the following reactions, predict whether they will tend to be spontaneous at high, low, all temperatures, or non-spontaneous at any temperature (10 points) a) An "instant ice-pack" type of reaction where AS > 0, and AH > 0 b) 3A (1) ► B(s) + C(1) + D(g), AH < 0 c) 2A(s) → B(g) + C(1), AH > 0
16. For the following reactions, predict whether they will tend to be spontaneous at either high or low temperatures, or at all temperatures, or at no temperature (10.0 points) a) H2(g) + 12(g) → 2HI(g) AH = -220 kJ b) 3S2(g) → 253(g) AH = +227 kJ c) H2O(l) → H2O(g) AH = +44 kJ d) H2(g) + '/gS8(g) → H2S(1) AH = -247 kJ
Question 6 1.5 pts Predict under what temperatures (all temperatures, low temperatures, or high temperatures), if any, the following reactions will be spontaneous. A. 2CO(g) + O2(g) = 2002(g), AH rxn=-566.0 kJ [ Select] B. 2NO2(g)2NO(g)+O2(g), AH rxn= +113.1 kJ [ Select ] C. 2H2(g)+O2(g)—2H2O(g), AH rxn=-483.6 kJ [ Select] D. 2H2O2(1)→2H2O(1)+O2(g), AH rxn= -196.0 kJ [Select ]
Tedict and explain whether the follo ind explain whether the following reactions will be nonspontaneous at all temperatures or spontaneous at all, low, or high temperatures. (a) 2POCI(8) ► 2PC(s) + O2(8) Air - 572 3; AS - 179 3K (b) 302(g) → 203(g) AF - 286 kJ; AS = -1373/ (c) 4NH3(g) + 502(g) → 4NO(g) + 6H2O() AH = -1274 kJ; AS = 180 J/K (d) 2PbS(s) + 302(g) → 2PbO(s) + 2502(8) AH = -844 kJ; AS...
Question 3 1 pts Predict under what temperatures (all temperatures, low temperatures, or high temperatures), if any, the reaction will be spontaneous. A. AS rxn= +100 J/K; AH rxn= +150 kJ [ Select] B. AS rxn= - 100 J/K; AH rxn= +200 kJ [Select]
the first one is supposed to be meant spontaneous. thanks
ction to be non-spontaneous at any temperature, which of the following В. Tur a chemical reaction to b conditions must be met? AS > 0, AITO AS > 0, AIT <0 AS <0, AHP <0 AS <0, AHP>0 D. 2. Place the following in on lowing in order of decreasing standard molar entropy. N204(8) NO(g) NO2(g) 204 > NO2 > NO B) NO > NO2 > N204 E) NO2 >...
Question 5 1 pts Predict under what temperatures (all temperatures, low temperatures, or high temperatures), if any, the reaction will be spontaneous. A. 4NO(g)+6H2O(g) 4NH3(g)+502(g) AHrxn=+906kJ [Select] B. 2N2O(g)+O2(g)-4NO(g) AH rxn=+197.1kJ [Select] C. C3H3(g)+502(g)-3CO2(g)+4H2O(g) AH rxn=-2044kJ Spontaneous at all temperatura A
Exercise 18.38-Enhanced-with Feedback 7 of 13> Part E ReviewI ConstantsI Periodic Table In addition, predict under what temperatures (all temperatures, low temperatures, or high temperatures), if any the reaction in each part will be spontaneous. Without doing any calculations, iddentify the signs of ΔSays and ΔSsurr for each of the following chemical reactions. Drag the appropriate items to their respective bins. Reset Help Reaction is spontaneous at all temperatures Reaction is spontaneous at low temperatures Reaction is spontaneous at high...
4. Classify each of the following reactions as one of these four types: • spontaneous at all temperatures • not spontaneous at any temperature spontaneous below a certain temperature but not above • spontaneous above a certain temperature but not below See Table 17.1 in Tro, Fridgen and Shaw. AS = -198.8 J/K AH = 924 kJ; AS = (a) N2(g) + 3 H2(g) → 2 NH, (g); AH = -92.2 kJ; (b) 2 Na O (s) + 5 CO2(g)...
please answer 9a,b,c,d
9. For the following reactions, predict whether they will tend to be spontaneous at high, low, ali temperatures, or non-spontaneous at any temperature (10 points) a) 2A(g) + 3B(9) C(g) + D(1), AH < 0 b) A() + B() (1) + D(s) AH > 0 c) A(s) + B(1) ► 20(1), AH < 0 d) 2A(s) B(s) + C(I), AH > 0
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