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According to Graham's law of effusion, the effusion rate is directly proportional to the root mean square velocity(VRMS) of gas molecule.
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- The maximum rate I at which oxygen molecules can be consumed by a bacterium or radius R in a lake where the concentration of oxygen is co = 0.2 mole m³ increases with the first power of R. We might expect the oxygen consumption, however, to increase roughly with an organism's volume. Together, this statements imply an upper limit to the size of a bacterium: If R gets too large, the bacterium would literally suffocate. The actual metabolic activity of a bacterium is about 0.02 mole kg-' sl. What limit do you then get on the size R of a bacterium? Compare to the size of a real bacteria. Can you think of some way for a bacterium to evade this limit?cvg.cengagenow.com The following data are for the gas phase decomposition of dinitrogen pentoxide at 335 K. 2 NO₂(g) + 1/ 0₂(g) N₂05(g) - - [N₂O5 ], M time, s 0.199 0 S OWLV2 | Online teaching and learning resource from Cengage Learning 9.95x10-2 116 Hint: It is not necessary to graph these data. (1) The half life observed for this reaction is In progress (2) Based on these data, the rate constant for this 4.98x10-2 2.49x10-² 232 348 + 88 S. 99% order reaction is 2.Predicting relative forward and reverse rates of reaction in a... Zulema v Acetic acid and water react to form hydronium cation and acetate anion, like this: HCH, CO,(aq)+H, 0() – H,O (aq)+CH,CO,(aq) Imagine 67. mmol of CH, CO, are added to a flask containing a mixture of HCH, Co,, H, 0, H,0* and CH, CO, at equilibrium, and then answer the following questions. O Zero. What is the rate of the reverse O Greater than zero, but less than the rate of the forward reaction. reaction before any CH;CO, has O Greater than zero, and equal to the rate of the forward reaction. been added to the flask? O Greater than zero, and greater than the rate of the forward reaction. O Zero. What is the rate of the reverse O Greater than zero, but less than the rate of the forward reaction. reaction just after the CH3CO, has O Greater than zero, and equal to the rate of the forward reaction. been added to the flask? O Greater than zero, and greater than the rate of the forward reaction. O Zero. What is the…
- An unknown gas, D, reacts with fluorine gas to form the compound DF4 (g), as represented by the following equation: D(g) + 2F 2 (g) --> DF4 (g) B. What is the initial rate of disappearance of F2 (g) in trial 1. Justify.2C4H6(g) → C8H12(g) At high temperatures, the compound C4H6 (1,3-butadiene) reacts according to the equation above. The rate of the reaction was studied at 625 K in a rigid reaction vessel. Two different trials, each shown with a different starting concentration, were carried out. The data were plotted in three different ways, as shown below. (a) For trial 1, calculate the initial pressure, in atm, in the vessel at 625 K. Assume that initially all the gas present in the vessel is C4H6. (Hint-this is a gas law problem from chemistry last year) (b) Use the data plotted in the graphs to determine the order of the reaction with respect to C4H6. (c) The initial rate of the reaction in trial 1 is 0.0010 mol/(L *s). Calculate the rate constant, k, for the reaction at 625 K.Predicting relative forward and reverse rates of reaction in a dynamic... Acetic acid and ethanol react to form ethyl acetate and water, like this: HCH3CO2(aq)+C₂H₂OH(aq) →C₂H₂CO₂CH3(aq)+H2O(l) Imagine 87. mmol of HCH3CO2 are added to a flask containing a mixture of HCH¸CO₂, C₂H₂OH, C₂H¸CO₂CH3 and H₂O at equilibrium, and then answer the following questions. What is the rate of the forward reaction before any HCH3CO2 has been added to the flask? What is the rate of the forward reaction just after the HCH3CO2 has been added to the flask? What is the rate of the forward reaction when the system has again reached equilibrium? How much more HCH3CO2 is in the flask when the system has again reached equilibrium? Zero. Greater than zero, but less than the rate of the reverse reaction. Greater than zero, and equal to the rate of the reverse reaction. Greater than zero, and greater than the rate of the reverse reaction. Zero. Greater than zero, but less than the rate of the reverse reaction.…
- Give detailed Solution with explanation neededBe sure to answer all parts. The rate law for 2 NO(g) + O2(g)→ 2 NO2(g) is rate = k[NO]°[O2l. %3D The following mechanisms have been proposed: I. 2 NO(g) + O2(g)→ 2 NO2(g) II. 2 NO(g) = N½O2(g) [fast] N,O2(g) + O2(g) → 2 NO,(g) [slow] III. 2 NO(g) = N,(g) + O2(g) [fast] N2(g) + 2 O2(g) → 2 NO2(g) [slow] (a) Which of these mechanisms is consistent with the rate law? Check all that apply. I. II. III. None of the above (b) Which of these mechanisms is most reasonable? I. II. III.The Combustion reaction of ethan is Ye Presented by the equation 2C2 He + 10 4 Co2+6H2 C) IF Placed in a 1.31 L eaction Flask and atter 250 Seconds, 0.199 mal of CzHe is leht Calculate O, 231 mol ot CH6 Was initially the average Yate af disa Pfearance o CiHe Hint: make sure to Cal late the Can Centratian f CiHeCM=mal/volume) Cal cu late the awerage armation Co1
- [References) Use the References to access important values if needed for this question. The reaction for the formation of phosgene from carbon monoxide and chlorine CO + C1→COCI, is first order in CO and first order in Cl,. Complete the rate law for this reaction in the box below. Use the form k[A]™[B]"... , where 'l' is understood for m, n ... (don't enter 1) and concentrations taken to the zero power do not appear. Rate = In an experiment to determine the rate law, the rate constant was determined to be 1.73x10 28 Ms1 Using this value for the rate constant, the rate of the reaction when [CO) = 2.49 M and [Cl,] 0.405 M would be Ms Submit Answer Try Another Version 2 item attempts remainingIn a study of the gas phase decomposition of dinitrogen pentoxide at 335 K N2O5(g)2 NO,(g) + ½ O2(g) the concentration of N2O5 was followed as a function of time. It was found that a graph of In[N,O3] versus time in seconds gave a straight line with a slope of -7.38×10-3 s and a y-intercept of -3.13. Based on this plot, the reaction is | order in N2O5 and the half life for the reaction i | seconds.In a study of the gas phase decomposition of dinitrogen pentoxide at 335 K N2O5(g) 2 NO2(g) + ½ O2(g) the concentration of N,O5 was followed as a function of time. It was found that a graph of In[N½O5] versus time in seconds gave a straight line with a slope of -7.29×103 s and a y-intercept of -1.44. Based on this plot, the reaction is v order in N,Og and the rate constant for the reaction is Submit Answer Try Another Version 2 item attempts remaining