CBSE\u00a0Revision Notes for Class 12 Chemistry\u00a0Download as PDF<\/a><\/strong><\/p>\n Chemical Kinetics class 12 Notes. CBSE quick revision note for class 12 Chemistry, Physics Maths, Biology and other subject are very helpful to revise the whole syllabus during exam days. The revision notes covers all important formulas and concepts given in the chapter. Even if you wish to have an overview of a chapter, quick revision notes are here to do if for you. These notes will certainly save your time during stressful exam days.<\/p>\n To download Chemical Kinetics class 12 Notes Chemistry, sample paper for class 12 Physics, Chemistry, Biology, History, Political Science, Economics, Geography, Computer Science, Home Science, Accountancy, Business Studies and Home Science; do check myCBSEguide app or website. myCBSEguide provides sample papers with solution, test papers for chapter-wise practice, NCERT Chemical Kinetics, NCERT Exemplar Chemical Kinetics, quick revision notes for ready reference, CBSE guess papers and CBSE important question papers. Sample Paper all are made available through\u00a0the best app for CBSE students<\/strong><\/a><\/p>\n![](\"https:\/\/media-mycbseguide.s3.ap-south-1.amazonaws.com\/images\/blog\/Class%2012%20Chemistry%20Book%20in%20English.jpg\")
<\/p>\nCBSE Class 12 Chemistry Revision Notes Chapter 4 Chemical Kinetics<\/strong><\/h2>\n
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\nRate of disappearance of <\/span><\/span>
\nwhere d[A] is small change in conc. of \u2018A\u2019 and dt is small interval of time
\nRate of disappearance of <\/span><\/span>
\nWhere d[B] is small change in conc. of \u2018B\u2019 and dt is small interval of time
\nRate of appearance of <\/span><\/span>
\nWhere d[C] is small change in conc. of \u2018C\u2019 and dt is small interval of time
\nRate of appearance of\u00a0<\/span><\/span>
\nWhere d[D] is small change in conc. of \u2018D\u2019 and dt is small interval of time
\nRate <\/span><\/span><\/li>\n
<\/span><\/span>
\nwhere is \u0394x change in concentration and \u0394t is large interval of time.<\/li>\n<\/span><\/span>.
\nwhere dx is small change in conc. and dt is the smallest interval of time.
\nIt is the expression which relates the rate of reaction with concentration of the reactants.<\/li>\n
\nThe constant of proportionality \u2018k\u2019 is known as rate constant.<\/li>\n
\nIf rate law expression for a reaction is Rate = k [A]x [B]y
\nThen its order of reaction = x + y<\/li>\n
\n<\/span><\/span>
\n<\/span><\/span>
\nIf we plot a graph between concentration of R vs time t, the graph is a straight line with slope equal to -k and intercept is equal to [Ro].<\/li>\n<\/span><\/span><\/li>\n
<\/span><\/span>, where \u2018k\u2019 is rate constant.
\nIt is independent of initial concentration for first order reaction.<\/li>\n<\/span><\/span>P
\n<\/span><\/span>
\nwhere \u2018k\u2019 is rate constant or specific reaction rate, [Ro] is initial molar conc., [R] is final molar conc. after time \u2018t\u2019.
\n<\/span><\/span>
\nwhere \u2018a\u2019 is initial conc. reacted in time \u2018t\u2019 final conc., after time \u2018t\u2019 is (a \u2013 x).<\/li>\n
\nA(g)<\/span><\/span>B(g) + C(g)
\n<\/span><\/span>
\nWhere pi is initial pressure of A, pt is total pressure of gaseous mixture containing A , B, C
\n<\/span><\/span>t =
<\/span><\/span>A +
<\/span><\/span>B +
<\/span><\/span>C<\/li>\n
\n<\/span><\/span>
<\/span><\/span><\/li>\n
\n<\/span><\/span>
\n<\/span><\/span>
\n<\/span><\/span>
\nwhere k = rate constant, A = frequency factor, Ea = energy of activation R = gas constant, T = temperature in Kelvin,
\n<\/span><\/span><\/li>\n
\n<\/span><\/span>
\nWhere ZAB represents the collision frequency of reactants, A and B, <\/span><\/span>represents the fraction of molecules with energies equal to or greater than Ea and P is called the probability or steric factor.<\/li>\n
CBSE Class 12 Revision Notes and Key Points<\/strong><\/h2>\n
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