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Question 39 2 pts Which of the following changes is most likely to decrease the reaction...
need help with 39 and 40 Which of the following changes is most likely to decrease...
need help with 39 and 40
Which of the following changes is most likely to decrease the reaction rate for the chemical reaction? 2CO(g) + O2(g) → 2CO2(g) removing some CO from the reaction mixture adding a catalyst to the reaction mixture adding twice as much O2 to the reaction mixture tripling the temperature of the reaction mixture Question 40 If two aqueous solutions with concentrations of 0.3 M sugar and 0.5 M sugar respectively are separated by a semipermeable...
which answer is correct? Question 40 If two aqueous solutions with concentrations of 0.3 M sugar...
which answer is correct?
Question 40 If two aqueous solutions with concentrations of 0.3 M sugar and 0.5 M sugar respectively are separated by a semipermeable membrane, during osmosis there is a net flow of sugar molecules from the 0.3M solution to the 0.5M solution water molecules from the 0.3M solution to the 0.5M solution sugar molecules from the 0.5M solution to the 0.3M solution water molecules from the 0.5M solution to the 0.3M solution
Which of the following equilibria will shift towards the formation of more products if the reaction...
Which of the following equilibria will shift towards the formation of more products if the reaction at equilibrium is compressed into half its volume? 1. 2N2O(g) + 2N2(g) + O2(g) II. 2CO(g) + O2(g) = 2CO2(g) III. N2(g) + O2(g) + 2NO(g) Both II and III. All three reactions will shift towards the formation of more products. Consider the following reaction at equilibrium. CO2(g) + 2 H2O(l) = CH2(g) + 2O2(g) AH° = +890 kJ Which two of the following...
1) Determine the effect of each of the following changes on the equilibrium mixture for the...
1) Determine the effect of each of the following changes on the equilibrium mixture for the following reaction: N2(g) + O2(g) + 90.2 kJ + 2NO(g) Circle an answer for each change. a. Increasing the temperature Shift to reactants No change Shift to products b. Adding a catalyst Shift to reactants No change Shift to products c. Removing nitrogen monoxide gas Shift to reactants No change Shift to products d. Decreasing the volume of the container Shift to reactants No...
Question 16 1 pts Consider the following endothermic reaction at equilibrium: 2NH3(e) <--> N2(g) + 3H)...
Question 16 1 pts Consider the following endothermic reaction at equilibrium: 2NH3(e) <--> N2(g) + 3H) Le Chatelier's principle predicts that adding N2 (g) to the system at equilibrium will result in a decrease in the concentration of NH3 (8) a decrease in the concentration of H2(g) an increase in the value of the equilibrium constant a lower partial pressure of N2 removal of all of the H2(g)
Which one of the following is FALSE? The following reaction 2 NO2(g) → 2 NO(g) +...
Which one of the following is FALSE? The following reaction 2 NO2(g) → 2 NO(g) + O2(g), Ahº, 1xn = +113.5 kJ, is not spontaneous at any temperature For the following reaction 2CO(g) + O2(g) → 2002(g) + 4 H2O(g), AH°rxn=-566 kJ, ASuniv is positive at low temperature but negative al high temperature Ο If ΔΗ. Orxn=-115 kJ and AsOrxn = +263 J/K, then ASuniv> 0 at all temperatures For the following reaction CO2(g) → C(s) + O2(g), AH, =...
Question 4 1 pts Which of the following mole ratios CANNOT be derived from the reaction 2 502 (g) + O2 (g) + 2 H2...
Question 4 1 pts Which of the following mole ratios CANNOT be derived from the reaction 2 502 (g) + O2 (g) + 2 H20 (1) --> 2 H2SO4 (aq) ? 02 mol SO2 2 mol H2SO4 2 mol H2SO4 2 mol O2 0 1 mol O2 2 mol H20 O 2 mol O2 1 mol O2 2 mol H20 2 mol SO2 Question 1 1 pts What do the coefficients in a balanced equation tell us? Mark ALL that...
1. a) Predict the effect of the following changes on the reaction in which SO3 decomposes...
1. a) Predict the effect of the following changes on the reaction in which SO3 decomposes to form SO2 and O2. 2 SO3(g) → 2 SO2 (g) + O2 (g) delta Ho = 197.78 kJ (1) Increasing the temperature of the reaction. (2) Increasing the pressure on the reaction. (3) Adding more O2 when the reaction is at equilibrium. (4) Removing O2 from the system when the reaction is at equilibrium. b) A person exposed to high levels of carbon...
Question 23 15 pts Consider the following reaction: N2O(g) + NO2(g) 3NO(g) AH = 155.7 kJ...
Question 23 15 pts Consider the following reaction: N2O(g) + NO2(g) 3NO(g) AH = 155.7 kJ In which direction will the equilibrium be shifted by the following changes? 1. Adding N20 (Select] 2. Removing some N20 (Select] 3. Adding a catalyst (Select] 4. Adding NO [Select] 5. Increasing the temperature of the reaction mixture [ Select) 6. Decreasing the volume of the reaction vessel [Select] Question 24 10 pts A reaction vessel is charged with HI, which partially decomposes to...
Consider the following equilibrium reaction : Heat + 2 SO2 (g) + O2(g) ↔ 2 SO3(g) Assume the above...
Consider the following equilibrium reaction : Heat + 2 SO2 (g) + O2(g) ↔ 2 SO3(g) Assume the above reaction is allowed to reach equilibrium prior to the following changes. Answer the following questions by writing increase, decrease or remain the same on the line. **please also explain why** If the reaction mixture is heated up , the value of the equilibrium constant will _______________________ If SO2 (g) is added to the reaction vessel the concentration of O2(g) will____________________________. If SO3 (g) is...
need help with 39 and 40
Which of the following changes is most likely to decrease the reaction rate for the chemical reaction? 2CO(g) + O2(g) → 2CO2(g) removing some CO from the reaction mixture adding a catalyst to the reaction mixture adding twice as much O2 to the reaction mixture tripling the temperature of the reaction mixture Question 40 If two aqueous solutions with concentrations of 0.3 M sugar and 0.5 M sugar respectively are separated by a semipermeable...
which answer is correct?
Question 40 If two aqueous solutions with concentrations of 0.3 M sugar and 0.5 M sugar respectively are separated by a semipermeable membrane, during osmosis there is a net flow of sugar molecules from the 0.3M solution to the 0.5M solution water molecules from the 0.3M solution to the 0.5M solution sugar molecules from the 0.5M solution to the 0.3M solution water molecules from the 0.5M solution to the 0.3M solution
Which of the following equilibria will shift towards the formation of more products if the reaction at equilibrium is compressed into half its volume? 1. 2N2O(g) + 2N2(g) + O2(g) II. 2CO(g) + O2(g) = 2CO2(g) III. N2(g) + O2(g) + 2NO(g) Both II and III. All three reactions will shift towards the formation of more products. Consider the following reaction at equilibrium. CO2(g) + 2 H2O(l) = CH2(g) + 2O2(g) AH° = +890 kJ Which two of the following...
1) Determine the effect of each of the following changes on the equilibrium mixture for the following reaction: N2(g) + O2(g) + 90.2 kJ + 2NO(g) Circle an answer for each change. a. Increasing the temperature Shift to reactants No change Shift to products b. Adding a catalyst Shift to reactants No change Shift to products c. Removing nitrogen monoxide gas Shift to reactants No change Shift to products d. Decreasing the volume of the container Shift to reactants No...
Question 16 1 pts Consider the following endothermic reaction at equilibrium: 2NH3(e) <--> N2(g) + 3H) Le Chatelier's principle predicts that adding N2 (g) to the system at equilibrium will result in a decrease in the concentration of NH3 (8) a decrease in the concentration of H2(g) an increase in the value of the equilibrium constant a lower partial pressure of N2 removal of all of the H2(g)
Which one of the following is FALSE? The following reaction 2 NO2(g) → 2 NO(g) + O2(g), Ahº, 1xn = +113.5 kJ, is not spontaneous at any temperature For the following reaction 2CO(g) + O2(g) → 2002(g) + 4 H2O(g), AH°rxn=-566 kJ, ASuniv is positive at low temperature but negative al high temperature Ο If ΔΗ. Orxn=-115 kJ and AsOrxn = +263 J/K, then ASuniv> 0 at all temperatures For the following reaction CO2(g) → C(s) + O2(g), AH, =...
Question 4 1 pts Which of the following mole ratios CANNOT be derived from the reaction 2 502 (g) + O2 (g) + 2 H20 (1) --> 2 H2SO4 (aq) ? 02 mol SO2 2 mol H2SO4 2 mol H2SO4 2 mol O2 0 1 mol O2 2 mol H20 O 2 mol O2 1 mol O2 2 mol H20 2 mol SO2 Question 1 1 pts What do the coefficients in a balanced equation tell us? Mark ALL that...
Question 23 15 pts Consider the following reaction: N2O(g) + NO2(g) 3NO(g) AH = 155.7 kJ In which direction will the equilibrium be shifted by the following changes? 1. Adding N20 (Select] 2. Removing some N20 (Select] 3. Adding a catalyst (Select] 4. Adding NO [Select] 5. Increasing the temperature of the reaction mixture [ Select) 6. Decreasing the volume of the reaction vessel [Select] Question 24 10 pts A reaction vessel is charged with HI, which partially decomposes to...
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