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Please Explain properly both Questions.
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Q1) Explain correlation between temperature coefficient of EMF of...
Corrosion Problem: Electrode Electrode Pb (s) PbCh (s) HCl (aqueous) AgCI (s)Ag (s) The emf of...
Corrosion Problem: Electrode Electrode Pb (s) PbCh (s) HCl (aqueous) AgCI (s)Ag (s) The emf of the cell represented in the accompanying diagram is 0.490 V at 25°C and the temperature coefficient is-1.84 × 10-4 VpC. All the compo- nents are present as pure solids in contact with an HCl electrolyte. (a) Write the half-cell reactions. (b) Write the overall cell reaction (c) Calculate the Gibbs free energy change and the entropy change for this reaction.
Will this reaction take place? Thank you Thermodynamics Gibbs Free energy Calculate Gibbs free energy for...
Will this reaction take place? Thank you
Thermodynamics Gibbs Free energy Calculate Gibbs free energy for reaction of urea hydrolysis CO(NH2)2(aq) + H2O(0) = CO2(g) + NH3(e) From standard enthalpy and entropy data: AH° = 119 kJ AS9 = 354.8 J/K = 0.3578 kJ/K T = 25°C = 298°K AG = AH° – TYAS°
Can someone please step by step explain how to answer every question. Thank you Question 20...
Can
someone please step by step explain how to answer every question.
Thank you
Question 20 For an equilibrium reaction, AG=0 kJ at 253.7 K. If the equilibrium constant is 80.0, what is the standard change in Gibb's free energy (kl) of this reaction? Question 21 For an equilibrium reaction, AG = 0 kJ at 472.5 K. If the standard change in Gibb's free energy of this reaction is 0.670 kJ, what is the equilibrium constant? Question 22 For an...
hello may you help me with this. thank you Thermodynamics Gibbs Free energy (N2)(8) + 3H2(8)...
hello may you help me with this. thank you
Thermodynamics Gibbs Free energy (N2)(8) + 3H2(8) = 2NH3(e) Thermodynamic parameters Reagent AH', J/K Nitrogen Hydrogen Ammonia 0 0 -46.1 191.5 130.6 192.5 Thermodynamics (N2)(8) + 3H2(g) + 2NH3(e) AG° = AH° – TXAS° product reactant 13 AH° = n;AH;s - In;AH; AS° = { n.5°(each product) - n_S°(each reactant) - sigma = "sum of" n= coefficient of product, n. = coefficient of reactant Thermodynamics Gibbs Free energy Calculate Gibbs free...
Typical Math Problems 1) What is the pH of a buffer solution which is 0.12M in...
Typical Math Problems 1) What is the pH of a buffer solution which is 0.12M in benzoic acid, pKa 4.19, and is 0.11M in sodium benzoate? 2) Find the %-diss of a buffer if the pKa 7.10 and the pH of the buffer is 7.50. 3) A weak monoprotic acid has a pKa 6.15. 50.00 mL of an 0.1250M aqueous solution of this weak acid is titrated with 0.1000M Na0H. a) What is the equivalence point volume and ½ equivalence...
Please explain Free Energy Changes in Chemical Reactions: Calculating. Below you will find key questions. 1....
Please explain Free Energy Changes in Chemical Reactions: Calculating. Below you will find key questions. 1. Calculate the standard free energy change for a reaction using the temperature, the standard enthalpy change, and the standard entropy change. 2. Interpret the meaning of the mathematical sign for the standard free energy change. 3. Calculate the standard free energy change for a reaction using the standard free energies of formation of products and reactants. 4. Calculate the standard free energy change for...
free energy enthal Name Entropy (S) The second factor involved in determining whether or not a...
free energy enthal
Name Entropy (S) The second factor involved in determining whether or not a process is spontaneous is the change in randomness or entropy (AS). Entropy is represented by the symbol S. Again, experience can help us understand the relationship between entropy and spontaneous processes. If we look at the two drawings below, we can predict which picture represents the stack of marbles "before and after they are bumped. We expect the stack of marbles (less random; lower...
Need help with #8 & 10. If they are correct will rate high. Thank you! 8....
Need help with #8 & 10. If they are
correct will rate high. Thank you!
8. The Haber process for the production of ammonia involves the equilibrium 2 NH3(g) → N2(g) + 3 H2(g) For this reaction, AH° = 92.38 kJ and AS = 198.3 J/K. Assume that AH° and AS° for this reaction do not change with temperature. (i) Predict the direction in which AG for the reaction changes with increasing temperature. (ii) Calculate AG at 25 °C and...
PLEASE ANSWER ALL 5 QUESTIONS (2 on standard entropy of reaction, 3 on Delta G) AND SHOW ALL WORK! *If you do not anticipate to answer all posted questions in given post, please leave unaswered for...
PLEASE ANSWER ALL 5 QUESTIONS (2 on standard entropy of reaction, 3
on Delta G) AND SHOW ALL WORK!
*If you do not anticipate to answer all posted questions in
given post, please leave unaswered for someone else to help me with
them ALL*
Consider the reaction: CaCo3(s) Cao(s)+Co2g) Using standard absolute entropies at 298K, calculate the entropy change for the system when 2.20 moles of CaCOs(s) react at J/K AS system Submit Answer Consider the reaction: 2C2Ho(g)+702)4Co2(g)+ 6H20) Using...
Answer both questions please and thank you!!! QUESTION 3 0.5 points If nitrogen gas has a...
Answer both questions please and thank you!!!
QUESTION 3 0.5 points If nitrogen gas has a density of 1.14 g/L, and an unknown gas has a density of 3.41 g/L at the same temperature and pressure, what is the ratio of the rate of effusion of the known gas to the rate of effusion of nitrogen? rate effusion unknown rate effusion N2 ? QUESTION 4 0.5 points The combustion reaction for octane burning in oxygen is: 2 C8H18 () 25...
Corrosion Problem: Electrode Electrode Pb (s) PbCh (s) HCl (aqueous) AgCI (s)Ag (s) The emf of the cell represented in the accompanying diagram is 0.490 V at 25°C and the temperature coefficient is-1.84 × 10-4 VpC. All the compo- nents are present as pure solids in contact with an HCl electrolyte. (a) Write the half-cell reactions. (b) Write the overall cell reaction (c) Calculate the Gibbs free energy change and the entropy change for this reaction.
Will this reaction take place? Thank you
Thermodynamics Gibbs Free energy Calculate Gibbs free energy for reaction of urea hydrolysis CO(NH2)2(aq) + H2O(0) = CO2(g) + NH3(e) From standard enthalpy and entropy data: AH° = 119 kJ AS9 = 354.8 J/K = 0.3578 kJ/K T = 25°C = 298°K AG = AH° – TYAS°
Can
someone please step by step explain how to answer every question.
Thank you
Question 20 For an equilibrium reaction, AG=0 kJ at 253.7 K. If the equilibrium constant is 80.0, what is the standard change in Gibb's free energy (kl) of this reaction? Question 21 For an equilibrium reaction, AG = 0 kJ at 472.5 K. If the standard change in Gibb's free energy of this reaction is 0.670 kJ, what is the equilibrium constant? Question 22 For an...
hello may you help me with this. thank you
Thermodynamics Gibbs Free energy (N2)(8) + 3H2(8) = 2NH3(e) Thermodynamic parameters Reagent AH', J/K Nitrogen Hydrogen Ammonia 0 0 -46.1 191.5 130.6 192.5 Thermodynamics (N2)(8) + 3H2(g) + 2NH3(e) AG° = AH° – TXAS° product reactant 13 AH° = n;AH;s - In;AH; AS° = { n.5°(each product) - n_S°(each reactant) - sigma = "sum of" n= coefficient of product, n. = coefficient of reactant Thermodynamics Gibbs Free energy Calculate Gibbs free...
Typical Math Problems 1) What is the pH of a buffer solution which is 0.12M in benzoic acid, pKa 4.19, and is 0.11M in sodium benzoate? 2) Find the %-diss of a buffer if the pKa 7.10 and the pH of the buffer is 7.50. 3) A weak monoprotic acid has a pKa 6.15. 50.00 mL of an 0.1250M aqueous solution of this weak acid is titrated with 0.1000M Na0H. a) What is the equivalence point volume and ½ equivalence...
free energy enthal
Name Entropy (S) The second factor involved in determining whether or not a process is spontaneous is the change in randomness or entropy (AS). Entropy is represented by the symbol S. Again, experience can help us understand the relationship between entropy and spontaneous processes. If we look at the two drawings below, we can predict which picture represents the stack of marbles "before and after they are bumped. We expect the stack of marbles (less random; lower...
Need help with #8 & 10. If they are
correct will rate high. Thank you!
8. The Haber process for the production of ammonia involves the equilibrium 2 NH3(g) → N2(g) + 3 H2(g) For this reaction, AH° = 92.38 kJ and AS = 198.3 J/K. Assume that AH° and AS° for this reaction do not change with temperature. (i) Predict the direction in which AG for the reaction changes with increasing temperature. (ii) Calculate AG at 25 °C and...
PLEASE ANSWER ALL 5 QUESTIONS (2 on standard entropy of reaction, 3
on Delta G) AND SHOW ALL WORK!
*If you do not anticipate to answer all posted questions in
given post, please leave unaswered for someone else to help me with
them ALL*
Consider the reaction: CaCo3(s) Cao(s)+Co2g) Using standard absolute entropies at 298K, calculate the entropy change for the system when 2.20 moles of CaCOs(s) react at J/K AS system Submit Answer Consider the reaction: 2C2Ho(g)+702)4Co2(g)+ 6H20) Using...
Answer both questions please and thank you!!!
QUESTION 3 0.5 points If nitrogen gas has a density of 1.14 g/L, and an unknown gas has a density of 3.41 g/L at the same temperature and pressure, what is the ratio of the rate of effusion of the known gas to the rate of effusion of nitrogen? rate effusion unknown rate effusion N2 ? QUESTION 4 0.5 points The combustion reaction for octane burning in oxygen is: 2 C8H18 () 25...
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