Doubts
Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents
Sign in to save progress →
Doubts
Sign in

Chemical Kinetics and Nuclear Chemistry question

2017 · 9 Apr · Shift 1 · Q17
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Chemistry
  4. /Chemical Kinetics and Nuclear Chemistry
  5. /2017 · 9 Apr · Shift 1 · Q17

Chemical Kinetics and Nuclear Chemistry question

2017 · 9 Apr · Shift 1 · Q17

JEE MainChemistryChemical Kinetics and Nuclear ChemistryMCQ+4 / −1
The rate of a reaction quadruples when the temperature changes from 300 to 310 K. The activation energy of this reaction is : (Assume activation energy and preexponential factor are independent of temperature; ln 2 = 0.693; R = 8.314 J mol−1 K−1)
  1. A
    107.2 kJ mol −-− 1
  2. B
    53.6 kJ mol −-− 1
  3. C
    26.8 kJ mol −-− 1
  4. D
    214.4 kJ mol −-− 1
PreviousNext

More from Chemical Kinetics and Nuclear Chemistry

  • Two reactions R1​ and R2​ have identical pre-exponential factors. Activation energy of R1​ exceeds that of R2​ by 10 kJ mol–1. If k1​ and k2​ are rate constants for reactions R1​ and R2​ respectively at 300 K, then…2017 · MCQ
  • The reaction of ozone with oxygen atoms in the presence of chlorine atoms can occur by a two step process shown below : O3​(g) + Cl ∙(g) → O2​(g) + ClO ∙ (g) . . . . . .(i) ki = 5.2 × 109 L mol−1 s−1 ClO ∙…2016 · MCQ
  • The rate law for the reaction below is given by the expression k [A] [B] A + B → Product If the concentration of B is increased from 0.1 to 0.3 mole, keeping the value of A at 0.1 mole, the rate constant will be :2016 · MCQ
  • Decomposition of H2​O2​ follows a first order reaction. In fifty minutes the concentration of H2​O2​ decreases from 0.5 to 0.125 M in one such decomposition. When the concentration of H2​O2​ reaches 0.05 M, the rate of formation of O2​…2016 · MCQ
  • Higher order (>3) reactions are rare due to2015 · MCQ
  • For the non – stoichiometre reaction 2A + B → C + D, the following kinetic data were obtained in three separate experiments, all at 298 K. The rate law for the formation of C is: Includes table2014 · MCQ
  • The rate of a reaction doubles when its temperature changes from 300K to 310K. Activation energy of such a reaction will be:(R = 8.314 JK–1 mol–1 and log 2 = 0.301)2013 · MCQ
  • For a first order reaction, (A) → products, the concentration of A changes from 0.1 M to 0.025 M in 40 minutes. The rate of reaction when the concentration of A is 0.01 M is :2012 · MCQ