Chemical Kinetics
153 questions in this chapter, page 3 of 4.
Study loop for Chemical Kinetics
1. Practise the PYQsPrevious-year questions, with answers
Chemical Kinetics – General
ABC26PH1034 · The oxidation of NO to NO2 occurs via the mechanism given below 2NO k-1k1⇌ N2O2 N2O2 + O2 k2 2NO2 (d [NO2])/dt in the presence of large… · DEC 2019 self-practice
ABC26PH0048 · Substance 'A' is exposed to 600 nm, 100 W light source for 6626 s, with 50% of the incident light being absorbed. 'A' decomposes according… · DEC 2019
ABC26PH1037 · For a reaction, raising the temperature from 200 K to 300 K results in the increase of rate constant by a factor of 2. The activation… · DEC 2019 self-practice
ABC26PH1038 · The rate constant for the reaction A2B4O → AB4 + AO, is described as, log k = 14.1 - 10000 K/T the activation energy (in kJ mol-1) is… · JUNE 2021 self-practice
ABC26PH1039 · The rate of decomposition of a gas is 10 mM s-1 when 10% is reacted and it is 5 mM s-1 when 40% is reacted. The order of the reaction is: · JUNE 2021 self-practice
ABC26PH1040 · For a person weighing 70 kg the minimal volume (in mL) of a fatal dose of a compound with LD50 = 80 mg kg-1, and density = 1.45 g mL-1 is · JUNE 2021 self-practice
ABC26PH1041 · For the reaction, [cis-M(en)2(OH)2]+ k2k1⇌ [trans-M(en)2(OH)2]+ the equilibrium constant is 0.16 and k1 is 3.3 × 10-4 s-1. The experiment… · JUNE 2021 self-practice
Complex Reactions
ABC26PH0949 · Difference between activation energies of the reverse and forward steps of a reversible reaction is 9.212 RT. If the pre-exponential factor… · JUNE 2018 self-practice
Enzyme Kinetics
ABC26PH0883 · For an enzyme catalyzed reaction, a Lineweaver-Burk plot gave the following data: slope = 40 s, intercept = 4 (mmol dm-3 s-1)-1. If the… · JUNE 2011 self-practice
ABC26PH0887 · In the Michaelis-Menten mechanism for enzyme kinetics, the expression obtained is: v/([E]0[S])=1.4 × 1012-104 v/([E]0) The values of k3… · JUNE 2012 self-practice
ABC26PH0681 · 1 × 10-6 moles of the enzyme carbonic anhyrase dehydrates H2 CO3 to produce 0.6 mol of CO2 per second. The turnover number of the enzyme is: · 2001-2022 self-practice
ABC26PH0684 · An enzyme following Michaelis-Menten kinetics was found to have highest activity at 37°C and pH 7.0. If the maximum velocity Vmax for this… · 2001-2022 self-practice
ABC26PH0909 · In the Lineweaver-Burk plot of (initial rate)-1 vs. (initial substrate concentration)-1 for an enzyme catalysed reaction following… · JUNE 2014 self-practice
ABC26PH0030 · For an enzyme-substrate reaction, a plot between 1/v and 1/([S0]) yields a slope of 40 s. If the enzyme concentration is 2.5, then the… · DEC 2014
ABC26PH0912 · For an enzyme-substrate reaction, a plot between 1/v and 1/[S0] yields a slope of 40 s. If the enzyme concentration is 2.5 μM, then the… · DEC 2014 self-practice
ABC26PH0926 · vmax and Km for an enzyme catalyzed reaction are 2.0 × 10-3 Ms-1 and 1.0 × 10-6 M, respectively. The rate of the reaction when the… · DEC 2015 self-practice
ABC26PH0044 · The slope and intercept obtained from (1/Rate) against (1/substrate concentration) of an enzyme catalyzed reaction are 300 and 2 × 105… · DEC 2017 self-practice
ABC26PH0945 · The slope and intercept obtained from (1/Rate) against (1/substrate concentration) of an enzyme catalyzed reaction are 300 and 2 × 105… · DEC 2017 self-practice
ABC26PH0045 · For an enzyme-substrate reaction, E+S k-1k1⇌ ES, ES k2 E+P, the slope and intercept of plot between 1/r and 1/([S]) are 10-2 s and 102… · JUNE 2018 self-practice
ABC26PH0948 · For an enzyme-substrate reaction, E+S k-1k1⇌ ES the slope and intercept of plot between 1 / r and 1 /[S] are 10-2 s and 102 M-1 s… · JUNE 2018 self-practice
Rate Laws Order
ABC26PH0016 · The half life of a zero order reaction (A → P) is given by (k = rate constant): · DEC 2011 self-practice
ABC26PH0881 · The half-life of a zero order reaction (A → P) is given by (k= rate constant): · JUNE 2011 self-practice
ABC26PH0657 · The half-life of the chemical reaction, A → Product, for initial reactant concentrations of 0.1 and 0.4 mol L-1 are 200 and 50 s… · 2001-2022
ABC26PH0882 · The decomposition of gaseous acetaldehyde at T(K) follows second order kinetics. The half-life of this reaction is 400 s when the initial… · JUNE 2011 self-practice
ABC26PH0665 · The kinetics of the reaction 2 N2 O5 → 4 NO2+O2 in liquid bromine medium was measured independently for three different initial… · 2001-2022
ABC26PH0893 · If the concept of half-life is generalized to quarter-life of a first order chemical reaction, it will be equal to · DEC 2012 self-practice
ABC26PH0021 · The decomposition of NH3 on Mo surface follows Langmuir-Hinshelwood mechanism. The decomposition was carried out at low pressures. The… · DEC 2012
ABC26PH0895 · The decomposition of NH3 on Mo surface follows Langmuir-Hinshelwood mechanism. The decomposition was carried out at low pressures. The… · DEC 2012 self-practice
ABC26PH0025 · The rate equation for the reaction 2AB + B2 → 2AB2 is given by rate = k[AB][B2] A possible mechanism consistent with this rate law is · DEC 2012
ABC26PH0902 · The rate equation for the reaction 2 AB+B2 → 2 AB2 is given byrate =k[AB] [B2] A possible mechanism consistent with this rate law is · JUNE 2013 self-practice
ABC26PH0678 · For the reaction A + B → Z, the concentration of Z at time t is given by [Z] = [A]t=0(1 - e-kt) + [Z]t=0, where k is the rate constant. The… · 2001-2022 self-practice
ABC26PH0026 · According to Arrhenius equation (k = rate constant and T = temperature) · DEC 2013 self-practice
ABC26PH0680 · For a zero order reaction, units of the rate constant is expressed as · 2001-2022 self-practice
ABC26PH0905 · According to Arrhenius equation (k = rate constant and T = temperature) · DEC 2013 self-practice
ABC26PH0029 · For a first order reaction A → products, the plot of ln (([A]t)/([A]0)) vs time, where [A]0 and [A]t to cocentration at time =0 and t… · DEC 2013
ABC26PH0911 · For a first order reaction A → products, the plot of ln (([A]t)/([A]0)) vs time, where [A]0 and [A]t to concentration at time =0 and t… · JUNE 2014 self-practice
ABC26PH0032 · The rate constant for a reaction A++Bn+1 → P is measured in two different aqueous solutions of ionic strengths 0.01 M and 0.04 M. If log… · DEC 2014
ABC26PH0914 · The rate constant for a reaction A3++Bn+1 → P is measured in two different aqueous solutions of ionic strengths 0.01 M and 0.04 M. If log… · DEC 2014 self-practice
ABC26PH0927 · The first order rate constant for a unimolecular gas phase reaction A → products that follows Lindemann mechanism is 2.0 s-1 at pA = 1 atm… · DEC 2015 self-practice
ABC26PH0929 · If the rates of a reaction are R1 and R2 at concentrations C1 and C2 of a reactant respectively, the order of reaction, 'n' (assuming that… · DEC 2015 self-practice
ABC26PH0039 · Experimentally determined rate law for the chemical reaction, 2NO2F → 2NO2 + F2 is R = k[NO2F] The rate determining step consistent with… · JUNE 2016
ABC26PH0930 · Experimentally determined rate law for the chemical reaction, 2NO2F → 2NO2 + F2 is R = k[NO2F] The rate determining step consistent with… · JUNE 2016 self-practice
ABC26PH0931 · For the chemical reaction in aqueous solution, CH2ClCOO^- + OH^- → CH2OHCOO^- + Cl^- the correct statement is · JUNE 2016 self-practice
ABC26PH0932 · If experimentally observed rate constant is greater than the maximum value of rate constant obtained using hard-sphere model of collision… · JUNE 2016 self-practice
ABC26PH0933 · Half-life t1/2 for a third order reaction 3C → products, where C0 is the initial concentration of C, will be · JUNE 2016 self-practice
ABC26PH0938 · The rate of an acid-catalyzed reaction in aqueous solution follows the rate equation r = k[X^+][Y2-][H^+] If k16 and k4 are rate constants… · DEC 2016 self-practice
ABC26PH0946 · Reaction between A and B is carried out for different initial concentrations and the corresponding half-life times are measured. The data… · DEC 2017 self-practice
ABC26PH0951 · If the half-life of a reaction is inversely proportional to the square of the concentration of the reactant, the order of the reaction is · JUNE 2019 self-practice