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Please kindly explain why the answer is B, it a reaction is
less than Zero?
TIF...
kindly help with 20 and 21 please 20. The sublimation of solid carbon dioxide is a...
kindly help with 20 and 21 please
20. The sublimation of solid carbon dioxide is a spontaneous process. Predict the sign (+,-, or 0) of AG", AH", and AS, respectively. 21. Calculate AG for the following reaction at 298 K. 2PbS(s) + 3O2(g) → 2PbO(s) + 25O2(g) AH°= -844 kJ ASO= -165 J/K If the reaction is not spontaneous under standard conditions at 298K, at what temperature (if any) would the reaction become spontaneous?
Under the conditions shown below for the following reaction. Fe2O3(s) + 3 CO(g) - 2 Fe(s)...
Under the conditions shown below for the following reaction. Fe2O3(s) + 3 CO(g) - 2 Fe(s) + 3 CO2(g) AG° = -28.0 kJ P(CO) - 3.1 atm, P(CO2) - 1.7 atm Calculate Arxn at 298 K, and indicate if the reaction is more or less spontaneous under these conditions than under standard conditions? -4.5 kJ, more spontaneous than under standard conditions None of these -4.5 kJ, less spontaneous than under standard conditions -23.5 kJ, more spontaneous than under standard conditions...
1) positive, greater than 0 OR negative, less than 0 2) positive, greater than 0 OR...
1) positive, greater than 0
OR negative, less than 0
2) positive, greater than 0 OR negative, less
than 0
3) positive, greater than 0 OR negative, less
than 0
4) positive, greater than 0 OR negative, less
than 0
5) smaller, larger, smaller or larger depending on temp.
FOLLOW-UP PROBLEM 20.7 Determining the Effect of Temperature on AG A reaction is nonspontaneous at room temperature but is spontaneous at 500°C. What can you say about the signs and...
Reaction 1: A + B+C Reaction 2: 2A + B +C R= 8.31 J mol-1 K-1...
Reaction 1: A + B+C Reaction 2: 2A + B +C R= 8.31 J mol-1 K-1 and assume T = 298 K 1. A solution of [A] =0.60 M is prepared and allowed to reach equilibrium. The concentration of A at equilibrium is 0.50 M. Use this information to calculate the equilibrium constant for reactions 1 and 2. Keg for reaction 1: Keg for reaction 2: 2. Which reaction is more spontaneous under standard conditions? 3. Determine if each reaction...
A student determines the value of the equilibrium constant to be 2.38*10-10 for the following reaction....
A student determines the value of the equilibrium constant to be 2.38*10-10 for the following reaction. Fe2O3(s) + 3H2(g) 2Fe(s) + 3H2O(g) Based on this value of Key AGⓇ for this reaction is expected to be (greater, less) Calculate the free energy change for the reaction of 2.20 moles of F,036) at standard conditions at 298K. kJ than zero. AG Submit Answer Retry Entire Group 9 more group attempts remaining
A certain reaction has Ho = 79.70 kJ and So = -55.80 J/K. (a) Is this...
A certain reaction has Ho = 79.70 kJ and So = -55.80 J/K.
(a) Is this reaction exothermic, endothermic or isothermic
(neither)?
This reaction is ---Select--- exothermic endothermic
isothermic .
(b) Does this reaction lead to a decrease, an increase, or no
change in the degree of disorder in the system?
This reaction leads to ---Select--- a decrease an
increase no change in the disorder of the system.
(c) Calculate Go for this reaction at 298 K. If this
value is less...
A certain reaction has Delta H degree = -22.50 kJ and Delta S degree = -75.50...
A certain reaction has Delta H degree = -22.50 kJ and Delta S degree = -75.50 J/K. Is this reaction exothermic, endothermic or isothermic (neither)? This reaction is Does this reaction lead to a decrease, an increase, or no change in the degree of disorder in the system? This reaction leads to in the disorder of the system. Calculate Delta G degree for this reaction at 298 K. If this value is less than 1 kJ/mol then enter 0 in...
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)...
PLEASE EXPLAIN WHY EACH ANSWER IS TRUE OR FALSE 6. The standard free energy AG° of...
PLEASE EXPLAIN WHY EACH ANSWER IS TRUE OR FALSE
6. The standard free energy AG° of the reaction A +B C following statements true or false. D is +3 kJ/mol. Mark the The standard free energy of the reaction can be calculated from the free energies of formation of A, B, C, and D from the elements. The reaction is endothermic under standard state conditions. One way to get the reaction to proceed to the right is to increase the...
Correlation Can a Pearson's r value be great than 1 or less than -l? Why or...
Correlation Can a Pearson's r value be great than 1 or less than -l? Why or why not? How do we calculate Pearson's r? How do we calculate df for a correlation? o What does the covariance represent mathematically? 0 How many standard deviations do we need to calculate to calculate the r value? 0 What is an example of an r value that represents a strong correlation, what about a weak correlation? What is the r value associated with...
kindly help with 20 and 21 please
20. The sublimation of solid carbon dioxide is a spontaneous process. Predict the sign (+,-, or 0) of AG", AH", and AS, respectively. 21. Calculate AG for the following reaction at 298 K. 2PbS(s) + 3O2(g) → 2PbO(s) + 25O2(g) AH°= -844 kJ ASO= -165 J/K If the reaction is not spontaneous under standard conditions at 298K, at what temperature (if any) would the reaction become spontaneous?
Under the conditions shown below for the following reaction. Fe2O3(s) + 3 CO(g) - 2 Fe(s) + 3 CO2(g) AG° = -28.0 kJ P(CO) - 3.1 atm, P(CO2) - 1.7 atm Calculate Arxn at 298 K, and indicate if the reaction is more or less spontaneous under these conditions than under standard conditions? -4.5 kJ, more spontaneous than under standard conditions None of these -4.5 kJ, less spontaneous than under standard conditions -23.5 kJ, more spontaneous than under standard conditions...
1) positive, greater than 0
OR negative, less than 0
2) positive, greater than 0 OR negative, less
than 0
3) positive, greater than 0 OR negative, less
than 0
4) positive, greater than 0 OR negative, less
than 0
5) smaller, larger, smaller or larger depending on temp.
FOLLOW-UP PROBLEM 20.7 Determining the Effect of Temperature on AG A reaction is nonspontaneous at room temperature but is spontaneous at 500°C. What can you say about the signs and...
Reaction 1: A + B+C Reaction 2: 2A + B +C R= 8.31 J mol-1 K-1 and assume T = 298 K 1. A solution of [A] =0.60 M is prepared and allowed to reach equilibrium. The concentration of A at equilibrium is 0.50 M. Use this information to calculate the equilibrium constant for reactions 1 and 2. Keg for reaction 1: Keg for reaction 2: 2. Which reaction is more spontaneous under standard conditions? 3. Determine if each reaction...
A student determines the value of the equilibrium constant to be 2.38*10-10 for the following reaction. Fe2O3(s) + 3H2(g) 2Fe(s) + 3H2O(g) Based on this value of Key AGⓇ for this reaction is expected to be (greater, less) Calculate the free energy change for the reaction of 2.20 moles of F,036) at standard conditions at 298K. kJ than zero. AG Submit Answer Retry Entire Group 9 more group attempts remaining
A certain reaction has Ho = 79.70 kJ and So = -55.80 J/K.
(a) Is this reaction exothermic, endothermic or isothermic
(neither)?
This reaction is ---Select--- exothermic endothermic
isothermic .
(b) Does this reaction lead to a decrease, an increase, or no
change in the degree of disorder in the system?
This reaction leads to ---Select--- a decrease an
increase no change in the disorder of the system.
(c) Calculate Go for this reaction at 298 K. If this
value is less...
A certain reaction has Delta H degree = -22.50 kJ and Delta S degree = -75.50 J/K. Is this reaction exothermic, endothermic or isothermic (neither)? This reaction is Does this reaction lead to a decrease, an increase, or no change in the degree of disorder in the system? This reaction leads to in the disorder of the system. Calculate Delta G degree for this reaction at 298 K. If this value is less than 1 kJ/mol then enter 0 in...
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)...
PLEASE EXPLAIN WHY EACH ANSWER IS TRUE OR FALSE
6. The standard free energy AG° of the reaction A +B C following statements true or false. D is +3 kJ/mol. Mark the The standard free energy of the reaction can be calculated from the free energies of formation of A, B, C, and D from the elements. The reaction is endothermic under standard state conditions. One way to get the reaction to proceed to the right is to increase the...
Correlation Can a Pearson's r value be great than 1 or less than -l? Why or why not? How do we calculate Pearson's r? How do we calculate df for a correlation? o What does the covariance represent mathematically? 0 How many standard deviations do we need to calculate to calculate the r value? 0 What is an example of an r value that represents a strong correlation, what about a weak correlation? What is the r value associated with...
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