kindly help with 20 and 21 please
Homework Answers
![2Pb5 + 3020 - 7 28606) + 25°2005 AHO = -844k] Asº = -165 To reaction to become spontaneous - AG so ay must become negative A6](http://img.homeworklib.com/questions/e11e6f40-7059-11ea-a462-170fad7eb696.png?x-oss-process=image/resize,w_560)
Add Answer to:
kindly help with 20 and 21 please
20. The sublimation of solid carbon dioxide is a...
help with all of these please 19. For a certain reaction, AH -35.4 kJ and AS...
help with all of these please
19. For a certain reaction, AH -35.4 kJ and AS - 85.5 / a) is the reaction endothermic or exothermic? b) Does the reaction lead to an increase or decrease in the disorder of the system? c) Calculate AGº for the reaction at 298K d) is the reaction spontaneous at 298K? 20. The sublimation of solid carbon dioxide is a spontaneous process. Predict the sign (+,-, or 0) of AG", AH", and As,", respectively....
For the values give for ΔH and ΔS, calculate ΔG foreach for each of the following reactions at 298 K. If the reactionis...
For the values give for ΔH and ΔS, calculate ΔG foreach for each of the following reactions at 298 K. If the reactionis not spontaneous under standard conditions at 298 K, at whattemperature (if any) would the reaction become spontaneous? a) 2PbS(s)+3O2(g) ---> 2PbO(s)+2SO2(g) ΔH= -844kj ; ΔS = -165 J/K b)2POCl3(g)--->2PCl3(g)+O2(g) ΔH= 572kJ ; ΔS= 179 J/K
A) 2PbS(s)+3O2(g)→2PbO(s)+2SO2(g), ΔH∘=−844 kJ, ΔS∘=−165 J/K Express the Gibbs free energy in kilojoules to three significant...
A) 2PbS(s)+3O2(g)→2PbO(s)+2SO2(g), ΔH∘=−844 kJ, ΔS∘=−165 J/K Express the Gibbs free energy in kilojoules to three significant digits. B) 2POCl3(g)→2PCl3(g)+O2(g), ΔH∘=572 kJ, ΔS∘=179 J/K Express the Gibbs free energy in kilojoules to three significant digits. C) At what temperature (if any) would the decomposition of POCl3 become spontaneous? Express the temperature in kelvins to three significant digits. If there is no answer, enter none.
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...
Problem Set 11 October 11, 2019 CHEM 1252 4. One of synthetic chemistry's "holy grails" is...
Problem Set 11 October 11, 2019 CHEM 1252 4. One of synthetic chemistry's "holy grails" is to transform methane, CHe(g), into methanol, CH OH(); the purpose is to create an alternative fuel from the primary component of natural gas. (a) Write a balanced chemical equation, with physical states, for the reaction of methane and oxygen to produce methanol. (b) Calculate AG for this reaction. How would you expect increasing the temperature of the reaction to influence AG? 5. Predict and...
help please! thnx 4. Consider the equilibrium in which solid calcium carbonate decomposes to the oxide...
help please! thnx
4. Consider the equilibrium in which solid calcium carbonate decomposes to the oxide plus carbon dioxide CaCO3(s) CaO(s) + CO2(g) Write down an expression for the equilibrium constant of this reaction in terms of the partial pressure of CO2. The standard enthalpies of formation of CaCO3(s), CO2(g) and CaO(s) are -1207.6 kJ mol", -393.5 kJ mol' and -634.9 kJ mol? respectively, and the standard entropies are 91.7JK'mol, 213.8JK' mol and 38.1 J K mol' (all at 298...
16. The sublimation of carbon dioxide at -78°C is given by: CO2(8) = CO2(g) AHsub =...
16. The sublimation of carbon dioxide at -78°C is given by: CO2(8) = CO2(g) AHsub = 25.2 kJ/mol Calculate ASsub when 48.8 g of CO2 sublimes at this temperature AH-26.23 A) 330 J/K B) 143 J/K C) 249 J/K D) 129 J/K E) 79.6 JK 17. A galvanic cell consists of a silver electrode in contact with 0.100 M AgNO3 solution and a magnesium electrode in contact with 0.100 M Mg(NO3)2 solution. Calculate the potential, Ecell, at 25°C. Given: Ag...
Help Please! Show all work October 11, 2019 CHEM 1252 Problem Set 11 Textbook Reading Assignment:...
Help Please! Show all work
October 11, 2019 CHEM 1252 Problem Set 11 Textbook Reading Assignment: 12.5-8 Additional Practice Problems: 12.43-44,46-48,50-55,57,59-61,63,65,67,73,75,81 1. A certain reaction has a All=-10.5 kJ and a AS +50.5 3/K (a) Explain whether or not the reaction is endothermic or exothermic. (b) Explain if the reaction is leading to an increase, decrease, or no change in disorder of the system. (c) Is the reaction spontaneous at 0 °C? 2. Use data from Appendix 4 (Table A4.3)...
1.) The value of S° for the oxidation of carbon to carbon dioxide, is __________ J/K...
1.) The value of
S° for the oxidation of carbon to carbon dioxide,
is __________ J/K
mol. The combustion of carbon, as in charcoal briquettes, in the
presence of abundant oxygen produces carbon dioxide.
2.)The value of
S° for the reaction
is __________ J/K.
3.)The value of
S° for the decomposition of gaseous sulfur dioxide to solid
elemental sulfur and gaseous oxygen,
is __________ J/K
mol.
Use the table below to answer the questions that follow. Thermodynamic Quantities for Selected...
APP-17 Problem Set 11 CHEM 1252 October 11, 2019 Textbook Reading Assignment: 12.5-B Additional Practice Problems:...
APP-17 Problem Set 11 CHEM 1252 October 11, 2019 Textbook Reading Assignment: 12.5-B Additional Practice Problems: 12.43-44.46-48 50-55,57,59 61,63,65,67,73,75,61 1. A certain reaction has a r.-10.5 and a + 50.5 UK (a) Explain whether or not the reaction is endothermic or exothermic AHCo Endo thermic (b) Explain if the reaction is leading to an increase, decrease, or no change in disorder of the system. (c) Is the reaction spontaneous at 0 °C? 2. Use data from Appendix 4 (Table 14.3)...
help with all of these please
19. For a certain reaction, AH -35.4 kJ and AS - 85.5 / a) is the reaction endothermic or exothermic? b) Does the reaction lead to an increase or decrease in the disorder of the system? c) Calculate AGº for the reaction at 298K d) is the reaction spontaneous at 298K? 20. The sublimation of solid carbon dioxide is a spontaneous process. Predict the sign (+,-, or 0) of AG", AH", and As,", respectively....
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...
Problem Set 11 October 11, 2019 CHEM 1252 4. One of synthetic chemistry's "holy grails" is to transform methane, CHe(g), into methanol, CH OH(); the purpose is to create an alternative fuel from the primary component of natural gas. (a) Write a balanced chemical equation, with physical states, for the reaction of methane and oxygen to produce methanol. (b) Calculate AG for this reaction. How would you expect increasing the temperature of the reaction to influence AG? 5. Predict and...
help please! thnx
4. Consider the equilibrium in which solid calcium carbonate decomposes to the oxide plus carbon dioxide CaCO3(s) CaO(s) + CO2(g) Write down an expression for the equilibrium constant of this reaction in terms of the partial pressure of CO2. The standard enthalpies of formation of CaCO3(s), CO2(g) and CaO(s) are -1207.6 kJ mol", -393.5 kJ mol' and -634.9 kJ mol? respectively, and the standard entropies are 91.7JK'mol, 213.8JK' mol and 38.1 J K mol' (all at 298...
16. The sublimation of carbon dioxide at -78°C is given by: CO2(8) = CO2(g) AHsub = 25.2 kJ/mol Calculate ASsub when 48.8 g of CO2 sublimes at this temperature AH-26.23 A) 330 J/K B) 143 J/K C) 249 J/K D) 129 J/K E) 79.6 JK 17. A galvanic cell consists of a silver electrode in contact with 0.100 M AgNO3 solution and a magnesium electrode in contact with 0.100 M Mg(NO3)2 solution. Calculate the potential, Ecell, at 25°C. Given: Ag...
Help Please! Show all work
October 11, 2019 CHEM 1252 Problem Set 11 Textbook Reading Assignment: 12.5-8 Additional Practice Problems: 12.43-44,46-48,50-55,57,59-61,63,65,67,73,75,81 1. A certain reaction has a All=-10.5 kJ and a AS +50.5 3/K (a) Explain whether or not the reaction is endothermic or exothermic. (b) Explain if the reaction is leading to an increase, decrease, or no change in disorder of the system. (c) Is the reaction spontaneous at 0 °C? 2. Use data from Appendix 4 (Table A4.3)...
1.) The value of
S° for the oxidation of carbon to carbon dioxide,
is __________ J/K
mol. The combustion of carbon, as in charcoal briquettes, in the
presence of abundant oxygen produces carbon dioxide.
2.)The value of
S° for the reaction
is __________ J/K.
3.)The value of
S° for the decomposition of gaseous sulfur dioxide to solid
elemental sulfur and gaseous oxygen,
is __________ J/K
mol.
Use the table below to answer the questions that follow. Thermodynamic Quantities for Selected...
APP-17 Problem Set 11 CHEM 1252 October 11, 2019 Textbook Reading Assignment: 12.5-B Additional Practice Problems: 12.43-44.46-48 50-55,57,59 61,63,65,67,73,75,61 1. A certain reaction has a r.-10.5 and a + 50.5 UK (a) Explain whether or not the reaction is endothermic or exothermic AHCo Endo thermic (b) Explain if the reaction is leading to an increase, decrease, or no change in disorder of the system. (c) Is the reaction spontaneous at 0 °C? 2. Use data from Appendix 4 (Table 14.3)...
Most questions answered within 3 hours.
-
Suppose that you know that in the population of full-time
employees in the United States, the...
asked 4 minutes ago -
This experiment was designed originally to sample various meat and carcass quality
aspects of Ontario pigs...
asked 5 minutes ago -
) Raw materials are studied for contamination. Suppose that
the number of particles of contamination per...
asked 19 minutes ago -
After running a regression analysis we calculated an F test and
the significance level was 0.15....
asked 15 minutes ago -
----Can someone please help me solve this one using JAVA
----I thank you in advance
Create...
asked 19 minutes ago -
1. What force primarily attracts the potassium ion to
the nitrate ion?
a. London forces...
asked 21 minutes ago -
What are the negative effects of abruptly stopping the use of
all fossil fuels? Give at...
asked 28 minutes ago -
Given that many conflict are the result of different parties having
different interests, is it possible...
asked 33 minutes ago -
A 750 g block can slide uniformly along the horizontal track
when a string attached to...
asked 36 minutes ago -
In 2017, Juan entered into a contract to write a book. The
publisher advanced Juan $50,000,...
asked 49 minutes ago -
Determine the number of kinds of protons in each molecule (w/
respect to NMR spectroscopy). Drawing...
asked 1 hour ago -
A jeweler whose near point is 68 cm from his eye uses a
magnifying glass as...
asked 58 minutes ago