Methane, CH4, is a potent green house gas.The only significant sink for methane is itsreaction with the OH radical:СН4 + ОН > CНз + H20The rate constant for this reaction, k =1.85•10-20. T2.82. e-987 K/T cm:molecule-s1. Assume a constant OHSconcentration of 1.02•100 molecule/cm3.Calculate the half life of methane (in years)at a temperature of 10.9 °C

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Answered: Methane, CH4, is a potent green house…

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...

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For each of the following processes predict the sign of AS for the reaction. In other words, will AS sys be positive (an increase in entropy) or negative (a decrease in entropy)? AS sys is expected to be positive (an increase in entropy) because one molecule is converted into two molecules. AS sys is expected to be negative (a decrease in entropy) because a cyclic compound is converted into acyclic compounds. O AS sys is expected to be positive (an increase in entropy) because an acyclic compound is converted into cyclic compounds. O AS sys is expected to be negative (a decrease in entropy) because two molecules are converted into one molecule.
Calculate DHrxn for 5 C(s) + 6 H2(g)-->C5H12(l) Given the following set of reactions: C5H12(l) + 8 O2(g)-->5 CO2(g) + 6 H2O(g) DH=−3505.8kJ C(s) + O2(g)-->CO2(g) DH=−393.5kJ 2H2(g)+ O2(g)-->2 H2O(g) DH=−483.5kJ
4. Write the free radical chain mechanism for the following bromination reaction: BrCC13 hv + Br HCC13
Which is the most important reactive intermediate of daytime atmospheric chemical phenomena? O radical HOO radical HO radical H3C radical
Which reactions have a positive ASrxn? A(g)+B(g) → C(g) 2 A(g)+B(s) → 3 C(g) A(s) + 2 B(g) –→ C(g) O 2 A(g)+B(g) → 4 C(g)
There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of several useful plastics. In the first step, calcium carbide and water react to form acetylene and calcium hydroxide: CaC(s) + 2 H₂O(9)-C₂H₂(g) + Ca(OH)₂(s) In the second step, acetylene, carbon dioxide and water react to form acrylic acid: 6C₂H₂(g) + 3 CO₂(9)+ 4H₂O(g)-5CH₂CHCO,H(9) Write the net chemical equation for the production of acrylic acid from calcium carbide, water and carbon dioxide. Be sure your equation is balanced. 4
The reaction below represents what phenomenon? H,O+hv → HO•+H formation of the hydroxyl radical in the relatively unpolluted troposphere the formation of hydroxyl radical at higher altitudes destruction of the hydroxyl radical at higher altitudes the strong reactivity of the hydroxyl radical
Indicate the scheme and detailed reaction mechanism of the reactions:
Use the following equations (picture) to determine the deltaH ° for the target reaction. Target: N2H2(l)+2H2O2(l)——> N2(g)+4H2O(l)
For a diene halogenation reaction at 0 degrees Celsius, assume that 2.50 g of 1,3-butadiene is used, 50 mL of ether is used as the solvent, and the concentration of HCl is 3.00M. What is the volume of HCl required to preform a diene halogenation reaction and the theoretical yield of products of the reaction. (Please include the number of moles of each reactant and product)

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Methane, CH4, is a potent green house gas. The only significant sink for methane is its reaction with the OH radical: CH4 + OH → CH3 + H20