* 100%- 6 (a) NOs decomposes in the gas phase by the reaction: 2 N2Os (g)...
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]
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9. Consider the decomposition reaction of N2Os. 2 N203(g) → 4NO2(g) + O2(g) follows the first order kinetics with rate constant of 4.8 x 10's. (a) if the initial 165 x 10-2M what is the concentration at 825 s? (b) How long it will take for concentration is 1.65 x 10-2M what is the concentrat the concentration of N2Os to decrease to 1.00 x 10-2M? t 10. Nitrosyl chloride, NOCI, decomposes slowly to NO and Cl2, the reaction follows...
9. At high temperatures, dinitrogen oxide gas decomposes to nitrogen according to the following equation: 2N20(g) 2N2(g) + 02(g) The following data are obtained in an experiment: and oxygen gases, Time (hr) 0 0.5 N-O 0.100 0.0934 0.0873 0.0815 0.0762 0.0665 0.0442 1.5 a) By plotting the data (on your own graph paper), show that the reaction is first-order. b) From the graph, determine k. c) Using k, find the time it takes to decrease the concentration to 0.0100 M
In a study of the gas phase decomposition of dinitrogen pentoxide at 335 K N2O3(g) 2 NO2(g) + % O2(g) the concentration of N,05 was followed as a function of time. It was found that a graph of In[N203) versus time in seconds gave a straight line with a slope of 6.25x10s and a y-intercept of -1.94 Based on this plot, the reaction is order in N205 and the rate constant for the reaction is In a study of the...
1) The rate constant for the reaction 2 N,Os(9) = 4 NO (9) + O2(9) is reported in units of sl. What is the overall order of the reaction? 2) The rate law for a reaction was reported as rate=k[A] [B][C] with molar concentrations in moles per cubic decimetre and time in seconds. What are the units of k? 3) The rate constant for the pseudo first-order acid- catalysed hydrolysis of glucose is 4.07' 10-s. Calculate the half-life for the...
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Nitric oxide (NO) is a gas that decomposes in air, therefore it is usually made when it is needed immediately. The most common use of nitric oxide is as fertilizer. In order to produce nitric oxide, 25 kmol/h of ammonia (NH3) and a stream of oxygen (02), both at 25°C and 1 atm, are fed into a continuous reactor packed with catalyst in which ammonia is completely consumed. The product gas emerges at...
In a study of the gas phase decomposition of hydrogen peroxide at 400 °C H202(g H20(g)+02(2 the concentration of H202 was followed as a function of time. It was found that a graph of 1/H,02l versus time in seconds gave a straight line with a slope of 1.01 Mr' s1 and a y-intercept of 7.19 M1 Based on this plot, the reaction i?-- order in lH,0, and the rate constant for the reaction is M'?1. zero first second
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answer for (b) which is and need help with (a) and (c)
as well.
A gas phase reaction proceeded by way of two parallel first order reactions as shown below: i) CH,CООН — СHa + CO2 ii Н,С-С-0 + H-0 CH,COОН In an experiment conducted at 450 °C the concentration of acetic acid was followed as а) a function of time. Describe how to use the data collected to find the rate constant...
For the gas phase decomposition of dinitrogen pentoxide at 335 K 2 N205 4 NO2 + O2 the following data have been obtained: 0.173 [N2O3], M time, s 9.75x10-2 122 5.50x10-2 244 3.10x102 366 Ms! The average rate of disappearance of N,Os over the time period from t=0 stot - 122 sis Submit Answer Retry Entire Group 9 more group attempts remaining For the gas phase decomposition of hydrogen iodide at 700 K 2 HI -H2 +12 the following data...
Nitrosyl bromide decomposes by the reaction 2 NOBO(g) + 2NO(9) + Brz(9). Show that the following data are consistent with a second-order reaction and determine the second-order rate constant for the reaction. Students may do this by plotting the data three different ways. For each plot, time goes on the x-axis. A zero-order reaction is linear when [NOBr] on the y-axis. A first-order reaction is linear when In[NOBr) is on the y-axis. A second-order reaction is linear when 1/[NOBr) is...