The rate of the gas-phase reaction H2 + I2 → 2 HI is given by d[I2] = k[H2 ][L2] dt rate = with k = 0.0242 L mol¬1 s-1 at 400°C. If the initial con- centration of Hz is 0.081 mol L-' and that of I, is 0.036 mol L-1, calculate the initial rate at which heat is absorbed or emitted during the reaction. Assume that the enthalpy change at 400°C is the same as that at 25°C.

The rate of the gas-phase reaction H2 + I2 → 2 HI is given by d[I2] = k[H2 ][L2] dt rate = with k = 0.0242 L mol¬1 s-1 at 400°C. If the initial con- centration of Hz is 0.081 mol L-' and that of I, is 0.036 mol L-1, calculate the initial rate at which heat is absorbed or emitted during the reaction. Assume that the enthalpy change at 400°C is the same as that at 25°C.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

For the gas phase decomposition of sulfuryl chloride at 600 K SO,Cl- →SO2 + Cl2 the following data have been obtained: [SO,Ch], M 3.55x10-3 2.35x10-3 1.55x10-3 1.02×103 time, min 148 296 444 The average rate of disappearance of SO,Cl, over the time period from t=0 min to t=148 min is M min!
1/(a。 - x) Slope=-0.0725 Intercept= 66.7 time calculate the rate constant of the reaction. O Cannot be determined O +0.0376 Ⓒ -0.0752 -0.0376 +0.0752
a The rate law for the reaction rogress 2NOBr(g) → 2NO(g) + Br2 (g) at some temperature is ΔΙΝΟΒ Rate = - = k[NOB1]² At If the half-life for this reaction is 2.00 s when [NOB1]o= 0.90 M, calculate the value of k for this reaction. k = L/mol·s Submit
Want solution asap
X Cut AaBbCcl AaBbCcDc AaBbCcD AaBbCcE AaB AaBb CcC Aa8be T No Spac. Heading 2 Calibri (Body) | AA Aa. E , 刻T Copy Paste Subtle Title Subtitle BIU abc x, x A - y- A- Heading 1 T Normal Format Painter Paragraph Styles Font Clipboard I 10 11 6. From the data variation of the reaction rate of the following temperatures: 1500 T (K) k (M1 second ) 500 1000 5,49 x 106 9,86 x 108 5,09 x 10° Specify: a. Amount of Activation Energy (Ea) b. Magnitude of the pre-exponential factor (A)
For the reaction cyclopropane gas yields propene gas at 500 °C, a plot of natural log of cyclopropane concentration versus time gives a straight line with a slope of -0.00071 s-1. What is the rate constant for the reaction? Do not Time (sec) include units. LN [A] Enter
The rate constant (k) for a reaction was measured as a function of temperature. A plot of In k versus 1/T (in K) is linear and has a slope of - 6704 K. Calculate the activation energy for the reaction. Express your answer to four significant figures and include the appropriate units. ? J E, 5.570 10 mol Submit Previous Answers Bequest Answer X Incorrect; Try Again; 3 attempts remaining
The reaction 2A--->P has a rate constant k= 3.50 x 10-4 dm6 mol-2s-1What is the order of this reaction? Why?
provide the given, required, and do the cancellations
Determine order of reaction with aspect To A show reasoning determine order of reaction with respect to B showing reason write rate of reaction what are units of rate constant with reasoning Determine value of K
The gas phase decomposition of hydrogen iodide at 700 K HI(g)- → H₂(g) + ½ l₂(g) is second order in HI with a rate constant of 1.20×10-³ M-¹s-¹. How much time is required for the concentration of HI to drop to 0.418 M if its initial concentration is 2.50 M? S
In solution, chemical species as simple as H+ and OH-canserve as catalysts for reactions. Imagine you couldmeasure the [H+] of a solution containing an acidcatalyzedreaction as it occurs. Assume the reactants andproducts themselves are neither acids nor bases. Sketchthe [H+] concentration profile you would measure as afunction of time for the reaction, assuming t = 0 is whenyou add a drop of acid to the reaction.