Gaseous NO2 decomposes when heated: 2 NO2 (g) → 2 NO (g) + O2 (g) The...
Gaseous NO2 decomposes when heated: 2 NO2 (g) → 2 NO (g) + O2 (g) The disappearance of NO2 is a first-order reaction with k = 3.6 x 10-3 s-1 at 300 ºC. If a sample of gaseous NO2 is placed in a flask and heated at 300 ºC for 150 s, what fraction of the initial sample remains after this time?
Homework Answers
![Since k--In 3.6x101 n A 150s [4 A] In =0.54 4] =e054 = 1.716 [A4 The fraction of initial sample remained 0.582](http://img.homeworklib.com/questions/52956ba0-c9ec-11ea-83b6-1ddab3ab3437.png?x-oss-process=image/resize,w_560)
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Gaseous NO2 decomposes when heated: 2 NO2 (g) → 2 NO (g) + O2
(g) The...
1a. At 573 K, gaseous NO2 decomposes, forming NO(g) and O2. If a vessel containing NO2(g)...
1a. At 573 K, gaseous NO2 decomposes, forming NO(g) and O2. If a vessel containing NO2(g) has an initial concentration of 0.056 mol/L, how long will it take for 75% of the NO2(g) to decompose? The decomposition of NO2(g) is second-order in the reactant, and the rate constant for this reaction, at 573 K, is 1.1 L/mol · s. = ___ s 1b. The decomposition of ammonia on a metal surface to form N2 and H2 is a zero-order reaction....
Gaseous azomethane, CH3N=NCH3 , decomposes in a first-order reaction when heated: CH3N=NCH3(g) ---->N2 (g) + C2H6...
Gaseous azomethane, CH3N=NCH3 , decomposes in a first-order reaction when heated: CH3N=NCH3(g) ---->N2 (g) + C2H6 (g) The rate constant for this reaction at 600 K is 0.0216 . a. If the initial quantity of azomethane in the flask is 4.64 g, how much remains after 0.0510 hour? b. how many grams of N2?
Gaseous azomethane, CH3N=NCH3, decomposes in a first-order reaction when heated: CH3N=NCH3(g) → N2(g) + C2H6(g) (A)...
Gaseous azomethane, CH3N=NCH3, decomposes in a first-order reaction when heated: CH3N=NCH3(g) → N2(g) + C2H6(g) (A) The rate constant for this reaction at 600 K is 0.0216 min-1. If the initial quantity of azomethane in the flask is 4.01 g, what quantity of N2 is formed after 0.0540 hour? (B) The rate constant for this reaction at 600 K is 0.0216 min-1. If the initial quantity of azomethane in the flask is 4.01 g, what quantity of N2 is formed...
When heated, colorless dinitrogen tetraoxide, N2O4(g), decomposes into red-brown nitrogen dioxide, NO2(g), according to the following...
When heated, colorless dinitrogen tetraoxide, N2O4(g), decomposes into red-brown nitrogen dioxide, NO2(g), according to the following reaction: N204 (g) + 2 NO2 (g) Suppose that 2.00 mol of N204(g) was placed into an empty 5.00-L flask and heated to 407 K. When equilibrium was attained, the concentration of red-brown NO2(g) was found to be 0.525 M. Calculate the equilibrium constant, K, for this reaction at 407 K. 3.80 2.00 0.500 0.263 0.525
1a. The reaction of NO and O2 produces NO2. 2 NO(g) + O2(g) → 2 NO2(g)...
1a. The reaction of NO and O2 produces NO2. 2 NO(g) + O2(g) → 2 NO2(g) The reaction is second order with respect to NO(g) and first order with respect to O2(g). At a given temperature, the rate constant, k, equals 4.6 x 102 M–2 s–1. When the initial concentrations of NO and O2 are 0.02 M and 0.015 M, respectively, the rate of the reaction is ___ M/s. 1b. The rate constant of a first-order decomposition reaction is 0.014...
When heated, colorless dinitrogen tetraoxide, N204(8), decomposes into red-brown nitrogen dioxide, NO2(g), according to the following...
When heated, colorless dinitrogen tetraoxide, N204(8), decomposes into red-brown nitrogen dioxide, NO2(g), according to the following reaction: N204(g) 42 NO2 (g) Suppose that 2.00 mol of N204(8) was placed into an empty 5.00-L flask and heated to 407 K. When equilibrium was attained, the concentration of red-brown NO2(g) was found to be 0.525 M. Calculate the equilibrium constant, K., for this reaction at 407 K. 0.500 O 0.525 2.00 0.263 3.80
6 (a) N2Os decomposes in the gas phase by the reaction: 2 N2Os (g)4 NO2 (g)+02 (g) At 25°C, a sample of gaseous N2Os sh...
6 (a) N2Os decomposes in the gas phase by the reaction: 2 N2Os (g)4 NO2 (g)+02 (g) At 25°C, a sample of gaseous N2Os showed the following dependence of concentration on time: IN:Os(mmol dm Time/h C0 8.0 5 4.3 10 2.3 15 1.20 0.64 20 ( Determine the order of reaction by plotting an appropriate graph. [5 marks] [2 marks] (ii) Determine the rate constant for this reaction. (ii) Find the concentration of NO2 after 25 h. [2 marks]
6...
N2O3(g) decomposes to NO2 (g) and O2(g) according to the following balanced equation: N20 (2) $...
N2O3(g) decomposes to NO2 (g) and O2(g) according to the following balanced equation: N20 (2) $ NO2(g) + O2(g) The decomposition of N2O(g) was found to be first order at 30 °C. The half-life for the reaction was found to be 3000 s. A rigid reactor was initially filled with N2O5 to a pressure of 400 psi at 30°C. What is the total pressure (in psi) in the reactor at 30 °C after 6000 s? ANS: 850 psi
The reaction of NO and O2 produces NO2. 2 NO(g) + O2(g) → 2 NO2(g) The...
The reaction of NO and O2 produces NO2. 2 NO(g) + O2(g) → 2 NO2(g) The reaction is second-order with respect to NO(g) and first-order with respect to O2(g). At a given temperature, the rate constant, k, equals 4.7E+2 M–2s–1. What is the rate of reaction when the initial concentrations of NO and O2 are 1.95E-2 M and 1.40E-2 M, respectively? 5.32E-6 M/s 2.50E-3 M/s 1.80E-3 M/s 0.128 M/s -2.50E-3 M/s
Nitrogen dioxide, NO2 decomposes into nitrogen monoxide (NO) and oxygen gas O2 , according to the...
Nitrogen dioxide, NO2 decomposes into nitrogen monoxide (NO) and oxygen gas O2 , according to the following reaction. 2 NO2 (g) 2 NO (g) + O2 (g) A sample of nitrogen dioxide in a sealed vessel, and the total pressure in the vessel was measured to be 0.0980 atm before any reaction had occurred. The total pressure in the vessel was monitored over time during the reaction at 575 K, giving the following data. Time (s) Ptotal (atm) 0.0 0.0980...
When heated, colorless dinitrogen tetraoxide, N2O4(g), decomposes into red-brown nitrogen dioxide, NO2(g), according to the following reaction: N204 (g) + 2 NO2 (g) Suppose that 2.00 mol of N204(g) was placed into an empty 5.00-L flask and heated to 407 K. When equilibrium was attained, the concentration of red-brown NO2(g) was found to be 0.525 M. Calculate the equilibrium constant, K, for this reaction at 407 K. 3.80 2.00 0.500 0.263 0.525
When heated, colorless dinitrogen tetraoxide, N204(8), decomposes into red-brown nitrogen dioxide, NO2(g), according to the following reaction: N204(g) 42 NO2 (g) Suppose that 2.00 mol of N204(8) was placed into an empty 5.00-L flask and heated to 407 K. When equilibrium was attained, the concentration of red-brown NO2(g) was found to be 0.525 M. Calculate the equilibrium constant, K., for this reaction at 407 K. 0.500 O 0.525 2.00 0.263 3.80
6 (a) N2Os decomposes in the gas phase by the reaction: 2 N2Os (g)4 NO2 (g)+02 (g) At 25°C, a sample of gaseous N2Os showed the following dependence of concentration on time: IN:Os(mmol dm Time/h C0 8.0 5 4.3 10 2.3 15 1.20 0.64 20 ( Determine the order of reaction by plotting an appropriate graph. [5 marks] [2 marks] (ii) Determine the rate constant for this reaction. (ii) Find the concentration of NO2 after 25 h. [2 marks]
6...
N2O3(g) decomposes to NO2 (g) and O2(g) according to the following balanced equation: N20 (2) $ NO2(g) + O2(g) The decomposition of N2O(g) was found to be first order at 30 °C. The half-life for the reaction was found to be 3000 s. A rigid reactor was initially filled with N2O5 to a pressure of 400 psi at 30°C. What is the total pressure (in psi) in the reactor at 30 °C after 6000 s? ANS: 850 psi
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