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The equilibrium constant for a given reaction a. always increases with temperature. b. increases with temperature...
QUESTION 4 In general, as the temperature increases, the equilibrium constant, Kea -1 Increases only for...
QUESTION 4 In general, as the temperature increases, the equilibrium constant, Kea -1 Increases only for an endothermic reaction Increases regardless of whether it is an endothermic or exothermic reaction Increases only for an exothermic reaction Is constant regardless of whether it is an endothermic or exothermic reaction Is constant only for nonspontancous reactions QUESTION 5 The equation of the line for the graph obtained for a thermodynamic experiment is y= (13111 K)x-29.655. Use this to answer the next two...
3. If the equilibrium constant for a chemical reaction decreases as the temperature is increases from...
3. If the equilibrium constant for a chemical reaction decreases as the temperature is increases from room temperature to 100 degrees C, would the reaction be exothermic of endothermic? Why?
For the following reaction, the gases A, B, and C are at equilibrium. If additional amount...
For the following reaction, the gases A, B, and C are at equilibrium. If additional amount of gas A is introduced, the equilibrium constant K: A(g) + B(g) C(g) a) Increases because by adding A, more products are made and the product to reactant ratio increases. b) Decrease because A is a reactant so the product to reactant ratio decreases c) Does not change because [B] and [C] do not change. d) Does not change as long as the temperature...
Question 28 (5 points) For a particular reaction, increasing the temperature of the reaction at constant...
Question 28 (5 points) For a particular reaction, increasing the temperature of the reaction at constant pressure and volume increased the formation of the product. Which of the following is true for the reaction? The reaction is exothermic. Increasing the temperature always increases the product formation, so you can't tell if it is endothermic or exothermic. The reaction is endothermic. Temperature changes do not affect the equilibrium.
All questions are true or false A catalyst changes both the equilibrium constant and the rate...
All
questions are true or false
A catalyst changes both the equilibrium constant and the rate of a chemical equilibrium. j. Ifthe temperature of a chemical equilibrium is increased, the reaction will shift in a direction that will lead to the consumption of some of the extra heat. An increase in temperature favors an endothermic reaction over an exothermic reaction. k. nundifis Is ined If a chemical equilibrium is exothermic in the forward direction, it is also exothermic in the...
17. By increasing the temperature at an equilibrium reaction: a. the reaction will move towards the...
17. By increasing the temperature at an equilibrium reaction: a. the reaction will move towards the endothermic reaction b. the reaction speed constant is reduced c. the reaction is accelerated as the number of sites where the reaction can occur increases d. the exothermic reaction is favored
7. The equilibrium constant for the auto-ionization of water HO () (aq)OH (aq) is 1.0x 10 at 25°C and 3.8 x 10 at 4...
7. The equilibrium constant for the auto-ionization of water HO () (aq)OH (aq) is 1.0x 10 at 25°C and 3.8 x 10 at 40C. a. Is the forward process endothermic or exothermic? b. What is the pH of the water at 40 C? c. Based on your calculated pH, is this solution acidic or basic? d. Which of the following statements is consistent with this behavior? i. The autoionization of water is an endothermic reaction i. The autoionization of water...
Answer the questions about the following reaction below. The equilibrium constant for the decomposition of PCls...
Answer the questions about the following reaction below. The equilibrium constant for the decomposition of PCls at 250°C is 0.041 ΔH is positive; reactants and products are gases at 250°C. Refer to your textbook. 1. Is the reaction above exothermic or endothermic? 2. What happens to the concentrations of PCls and Cl if more PCls is added once the reaction reaches equilibrium? (increases, decreases) PC1s Cl2 3. What happens to the moles of PCIs, PCls and Cl in the container...
At High Temperature the red color is strong. At Low Temperature the gas has less color....
At High Temperature the red color is strong. At Low Temperature the gas has less color. If we represent the equilibrium as: N204() 2 2 NO2(g) We can conclude that: 1. This reaction is: A. Exothermic B. Endothermic C. Neutral D. More information is needed to answer this question. 2. When the temperature is decreased the equilibrium constant, K: A. Increases B. Decreases C. Remains the same D. More information is needed to answer this question. 3. When the temperature...
Dinitrogen tetraoxide and nitrogen dioxide are two gases that exist in equilibrium at a range of...
Dinitrogen tetraoxide and nitrogen dioxide are two gases that exist in equilibrium at a range of temperatures. NO2 is a reddish brown gas while N204 is colorless. At High Temperature the red color is strong. || At Low Temperature the gas has less color. If we represent the equilibrium as: 2 NO2(g) = N204(9) We can conclude that: 1. This reaction is: A. Exothermic B. Endothermic C. Neutral D. More information is needed to answer this question. 2. When the...
QUESTION 4 In general, as the temperature increases, the equilibrium constant, Kea -1 Increases only for an endothermic reaction Increases regardless of whether it is an endothermic or exothermic reaction Increases only for an exothermic reaction Is constant regardless of whether it is an endothermic or exothermic reaction Is constant only for nonspontancous reactions QUESTION 5 The equation of the line for the graph obtained for a thermodynamic experiment is y= (13111 K)x-29.655. Use this to answer the next two...
3. If the equilibrium constant for a chemical reaction decreases as the temperature is increases from room temperature to 100 degrees C, would the reaction be exothermic of endothermic? Why?
Question 28 (5 points) For a particular reaction, increasing the temperature of the reaction at constant pressure and volume increased the formation of the product. Which of the following is true for the reaction? The reaction is exothermic. Increasing the temperature always increases the product formation, so you can't tell if it is endothermic or exothermic. The reaction is endothermic. Temperature changes do not affect the equilibrium.
All
questions are true or false
A catalyst changes both the equilibrium constant and the rate of a chemical equilibrium. j. Ifthe temperature of a chemical equilibrium is increased, the reaction will shift in a direction that will lead to the consumption of some of the extra heat. An increase in temperature favors an endothermic reaction over an exothermic reaction. k. nundifis Is ined If a chemical equilibrium is exothermic in the forward direction, it is also exothermic in the...
7. The equilibrium constant for the auto-ionization of water HO () (aq)OH (aq) is 1.0x 10 at 25°C and 3.8 x 10 at 40C. a. Is the forward process endothermic or exothermic? b. What is the pH of the water at 40 C? c. Based on your calculated pH, is this solution acidic or basic? d. Which of the following statements is consistent with this behavior? i. The autoionization of water is an endothermic reaction i. The autoionization of water...
Answer the questions about the following reaction below. The equilibrium constant for the decomposition of PCls at 250°C is 0.041 ΔH is positive; reactants and products are gases at 250°C. Refer to your textbook. 1. Is the reaction above exothermic or endothermic? 2. What happens to the concentrations of PCls and Cl if more PCls is added once the reaction reaches equilibrium? (increases, decreases) PC1s Cl2 3. What happens to the moles of PCIs, PCls and Cl in the container...
At High Temperature the red color is strong. At Low Temperature the gas has less color. If we represent the equilibrium as: N204() 2 2 NO2(g) We can conclude that: 1. This reaction is: A. Exothermic B. Endothermic C. Neutral D. More information is needed to answer this question. 2. When the temperature is decreased the equilibrium constant, K: A. Increases B. Decreases C. Remains the same D. More information is needed to answer this question. 3. When the temperature...
Dinitrogen tetraoxide and nitrogen dioxide are two gases that exist in equilibrium at a range of temperatures. NO2 is a reddish brown gas while N204 is colorless. At High Temperature the red color is strong. || At Low Temperature the gas has less color. If we represent the equilibrium as: 2 NO2(g) = N204(9) We can conclude that: 1. This reaction is: A. Exothermic B. Endothermic C. Neutral D. More information is needed to answer this question. 2. When the...
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