Although the reaction below is spontaneous, it does not proceed at a measurable rate at low...
Although the reaction below is spontaneous, it does not proceed at a measurable rate at low temperatures. Which statement(s) can account for this?
3 H2 (g) + N2 (g) → 2 NH3 (g)
1. The frequency of collisions at low temperatures is reduced.
2. The activation energy at low temperatures is reduced.
3. The average energy of collisions at low temperatures is reduced.
| a. |
1 and 3 only |
|
| b. |
1 only |
|
| c. |
1 and 2 only |
|
| d. |
2 and 3 only |
|
| e. |
1, 2, and 3 |
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Although the reaction below is spontaneous, it does not proceed
at a measurable rate at low...
Q1 Q2 Q3 Is a reaction with the following values of AH and AS spontaneous at...
Q1
Q2
Q3
Is a reaction with the following values of AH and AS spontaneous at 350 K?. AH 107 kJ AS = - 285 J/K A. The reaction is not spontaneous. B. The reaction is spontaneous. C. The reaction is at equilibrium. D. Cannot be determined Which of the following reactions represent AG°f? A. Na (s) + 1/2 F2 (g) → NaF (s) B. 2 H2 (g) + O2 (g) + 2 H20 (1) C. H30+ (aq) + OH-...
1. Consider the reaction below. N2(g) + 3 H2(g) ⇋ 2 NH3(g) Which of the following...
1. Consider the reaction below. N2(g) + 3 H2(g) ⇋ 2 NH3(g) Which of the following changes would cause less NH3 to be produced? decreasing the volume adding N2 increasing the volume adding H2 2. Consider the following reaction. N2(g) + 3 H2(g) ⇋ 2 NH3(g) The forward reaction is exothermic. Which of the following changes would cause less NH3 to be produced? decreasing the temperature adding H2 increasing the temperature adding N2 3. What is the effect of a...
15. The standard Gibbs free energy change (AG%) for the Haber reaction at 298K is -2.83...
15. The standard Gibbs free energy change (AG%) for the Haber reaction at 298K is -2.83 kJ/mol N2(g) + 3H2(g) + 2NH3(g) If the reaction begins with 2.55 atm N2(g) 0.115 atm Hz(g) and 0.488 atm NH3(9) at 298K what is the free energy change (AG) for the reaction under these conditions AND will the reaction be spontaneous under these conditions? (10 points) 16. For the following reactions, predict whether they will tend to be spontaneous at either high or...
Please solve questions 1, 2 and 3 At what temperatures is the reaction below spontaneous? 2...
Please solve questions 1, 2 and 3
At what temperatures is the reaction below spontaneous? 2 H2(g) + O2(g) + 2 H2O(l) Select one: O a. at T > ~1750 K O b. at T < ~1750 K O c. at T > ~1.75 K. d. at T < ~ 1.75 K O e. The reaction is spontaneous at all temperatures. Which one of the following thermodynamic quantities is not a state function? Select one: O a. entropy b. Gibbs...
please help with 3 and 4! UquimulTum ll concentrations are correct following reaction does not proceed...
please help with 3 and 4!
UquimulTum ll concentrations are correct following reaction does not proceed at room temperature (the equilibrium nstant is exceedingly low, 10-31), but NO is produced at higher temperatures co h as found in automobile engines) (suc N2(g) + O2(g) 2 NO(g) Suppose that 5.00 moles of N2 and 10.00 moles of 02 are added to a reaction chamber at room temperature. The temperature is increased to 1000 °C. If x moles of N2 react, how...
the first one is supposed to be meant spontaneous. thanks ction to be non-spontaneous at any...
the first one is supposed to be meant spontaneous. thanks
ction to be non-spontaneous at any temperature, which of the following В. Tur a chemical reaction to b conditions must be met? AS > 0, AITO AS > 0, AIT <0 AS <0, AHP <0 AS <0, AHP>0 D. 2. Place the following in on lowing in order of decreasing standard molar entropy. N204(8) NO(g) NO2(g) 204 > NO2 > NO B) NO > NO2 > N204 E) NO2 >...
1) a) For the following reaction, the rate of formation of NH3 is 0.020 M/min. N2(g)...
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questions 3,4,5 TICLE complete the following sentence. The vapor A) spontaneous at low temperature and nonspontane...
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questions 3,4,5 TICLE complete the following sentence. The vapor A) spontaneous at low temperature and nonspontane...
questions 3,4,5
TICLE complete the following sentence. The vapor A) spontaneous at low temperature and nonspontane B) nonspontaneous at all temperatures honspontaneous at low temperature and spontaneous at high temperature D) spontaneous at all temperatures E) not enough information given to draw a conclusion 3) Given the following reaction at equilibrium, if Kp = 1.20 at 250.0°C, KC PC13 (8) + Cl2 (g) PCI (8) A) 429 B) 2.79 x 10-2 51.5 D) 1.20 E) 3.90 x 10-6 4) All...
A reaction that has a positive AH and a positive AS will be spontaneous at high...
A reaction that has a positive AH and a positive AS will be spontaneous at high temperatures spontaneous at low temperatures spontaneous at all temperatures nonspontaneous at all temperatures QUESTION 6 Which of the following statements is FALSE? Keg for a reaction written in reverse is the reciprocal of the key for the forward reaction A reaction quotient (Q) larger than Keq means that the reaction will shift toward reactants Chemical equilibrium indicates that reactants and products are present in...
Q1
Q2
Q3
Is a reaction with the following values of AH and AS spontaneous at 350 K?. AH 107 kJ AS = - 285 J/K A. The reaction is not spontaneous. B. The reaction is spontaneous. C. The reaction is at equilibrium. D. Cannot be determined Which of the following reactions represent AG°f? A. Na (s) + 1/2 F2 (g) → NaF (s) B. 2 H2 (g) + O2 (g) + 2 H20 (1) C. H30+ (aq) + OH-...
15. The standard Gibbs free energy change (AG%) for the Haber reaction at 298K is -2.83 kJ/mol N2(g) + 3H2(g) + 2NH3(g) If the reaction begins with 2.55 atm N2(g) 0.115 atm Hz(g) and 0.488 atm NH3(9) at 298K what is the free energy change (AG) for the reaction under these conditions AND will the reaction be spontaneous under these conditions? (10 points) 16. For the following reactions, predict whether they will tend to be spontaneous at either high or...
Please solve questions 1, 2 and 3
At what temperatures is the reaction below spontaneous? 2 H2(g) + O2(g) + 2 H2O(l) Select one: O a. at T > ~1750 K O b. at T < ~1750 K O c. at T > ~1.75 K. d. at T < ~ 1.75 K O e. The reaction is spontaneous at all temperatures. Which one of the following thermodynamic quantities is not a state function? Select one: O a. entropy b. Gibbs...
please help with 3 and 4!
UquimulTum ll concentrations are correct following reaction does not proceed at room temperature (the equilibrium nstant is exceedingly low, 10-31), but NO is produced at higher temperatures co h as found in automobile engines) (suc N2(g) + O2(g) 2 NO(g) Suppose that 5.00 moles of N2 and 10.00 moles of 02 are added to a reaction chamber at room temperature. The temperature is increased to 1000 °C. If x moles of N2 react, how...
the first one is supposed to be meant spontaneous. thanks
ction to be non-spontaneous at any temperature, which of the following В. Tur a chemical reaction to b conditions must be met? AS > 0, AITO AS > 0, AIT <0 AS <0, AHP <0 AS <0, AHP>0 D. 2. Place the following in on lowing in order of decreasing standard molar entropy. N204(8) NO(g) NO2(g) 204 > NO2 > NO B) NO > NO2 > N204 E) NO2 >...
questions 3,4,5
TICLE complete the following sentence. The vapor A) spontaneous at low temperature and nonspontane B) nonspontaneous at all temperatures honspontaneous at low temperature and spontaneous at high temperature D) spontaneous at all temperatures E) not enough information given to draw a conclusion 3) Given the following reaction at equilibrium, if Kp = 1.20 at 250.0°C, KC PC13 (8) + Cl2 (g) PCI (8) A) 429 B) 2.79 x 10-2 51.5 D) 1.20 E) 3.90 x 10-6 4) All...
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