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Average Rate of Reaction

Q. 8) A concentration-time study of the gas phase reaction 2 A3 →3 A2 produced the data in the table below.What is the average rate of formation of A2 in the time interval 20-30 seconds?

Solved • Jun 27, 2019

Average Rate of Reaction

Q. 7) The decomposition of dinitrogen pentoxide is described by the chemical equation 2 N2O5(g) →4 NO2(g) +O2(g) If the rate of appearance of O2 is equal to 2.40 mol/min at a particular moment, what is the rate of disappearance of N2O5 at that moment? A) 1.20 mol/min B) 9.60 mol/min C) 4.80 mol/min D) 0.600 mol/min

Solved • Jun 27, 2019

Average Rate of Reaction

Q. 5) The decomposition of dinitrogen pentoxide is described by the chemical equation 2 N2O5(g) →4 NO2(g) +O2(g) If the rate of disappearance of N2O5 is equal to 1.40 mol/min at a particular moment, what is the rate of appearance of NO2 at that moment? A) 1.40 mol/min B) 2.80 mol/min C) 5.60 mol/min D) 0.700 mol/min

Solved • Jun 27, 2019

Average Rate of Reaction

Q. 4) The reaction that occurs in a Breathalyzer, a device used to determine the alcohol level in a person's bloodstream, is given below. If the rate of appearance of Cr2(SO4)3 is 1.24 mol/min at a particular moment, what is the rate of disappearance of C2H6O at that moment? 2 K2Cr2O7 + 8 H2SO4 + 3 C2H6O →2 Cr2(SO4)3 + 2 K2SO4 + 11 H2O A) 1.86 mol/min B) 3.72 mol/min C) 0.826 mol/min D) 0.413 mol/min

Solved • Jun 27, 2019

Average Rate of Reaction

Q. 3) For the reaction shown below, what is the relationship between the rate of formation of Br2 and the rate of reaction of Br- over the same time period? ClO2 -(aq) + 4 Br-(aq) + 4 H+(aq)→Cl-(aq) + 2 Br2(aq) +2 H2O(l) A) rate of formation of Br2 = 1/4 × rate of reaction of Br- B) rate of formation of Br2 = 1/2 × rate of reaction of Br- C) rate of formation of Br2 = 2 × rate of reaction of Br- D) rate of formation of Br2 = 2 × rate of reaction of Br-

Solved • Jun 27, 2019

Average Rate of Reaction

Q. 2) The decomposition of dinitrogen pentoxide is described by the chemical equation 2 N2O5(g) →4 NO2(g) +O2(g) If the rate of appearance of NO2 is equal to 0.560 mol/min at a particular moment, what is the rate of appearance of O2 at that moment? A) 1.12 mol/min B) 0.140 mol/min C) 2.24 mol/min D) 0.280 mol/min

Solved • Jun 27, 2019

Average Rate of Reaction

Q. 1) Molecular hydrogen can be made from methane gas by the reaction below. How is the rate of disappearance of CH4 related to the rate of appearance of H2?

Solved • Jun 27, 2019