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

2023 · 31 Jan · Shift 2 · Q22
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. /2023 · 31 Jan · Shift 2 · Q22

Chemical Kinetics and Nuclear Chemistry question

2023 · 31 Jan · Shift 2 · Q22

JEE MainChemistryChemical Kinetics and Nuclear ChemistryNumerical+4 / −1
The rate constant for a first order reaction is 20 min−120 \mathrm{~min}^{-1}20 min−1. The time required for the initial concentration of the reactant to reduce to its 132\frac{1}{32}321​ level is ‾\underline{\hspace{2cm}}​×10−2 min\times 10^{-2} \mathrm{~min}×10−2 min. (Nearest integer) (Given : ln⁡10=2.303\ln 10=2.303ln10=2.303 and log⁡2=0.3010 )\log 2=0.3010 \text { )}log2=0.3010 )
Numerical answer
PreviousNext

More from Chemical Kinetics and Nuclear Chemistry

  • The rate constants for decomposition of acetaldehyde have been measured over the temperature range 700 - 1000 K. The data has been analysed by plotting ln k vs T103​ graph. The value of activation energy for the reaction… Includes diagram2022 · Numerical
  • For a first order reaction, the time required for completion of 90% reaction is 'x' times the half life of the reaction. The value of 'x' is (Given : ln 10 = 2.303 and log 2 = 0.3010)2022 · MCQ
  • The half life for the decomposition of gaseous compound A is 240 s when the gaseous pressure was 500 Torr initially. When the pressure was 250 Torr, the half life was found to be 4.0 min. The order of the reaction…2022 · Numerical
  • For the decomposition of azomethane. CH3​N2​CH3​(g) → CH3​CH3​(g) + N2​(g), a first order reaction, the variation in partial pressure with time at 600 K is given as The half life of the reaction is ​×… Includes diagram2022 · Numerical
  • For a given chemical reaction γ 1A + γ 2B →γ 3C + γ 4D Concentration of C changes from 10 mmol dm − 3 to 20 mmol dm − 3 in 10 seconds. Rate of appearance of D is 1.5 times the rate of disappearance of B…2022 · Numerical
  • At 345 K, the half life for the decomposition of a sample of a gaseous compound initially at 55.5 kPa was 340 s. When the pressure was 27.8 kPa, the half life was found to be 170 s. The order of the reaction is ​.…2022 · Numerical
  • For a reaction A→2 B+C the half lives are 100 s and 50 s when the concentration of reactant A is 0.5 and 1.0 mol L−1 respectively.…2022 · Numerical
  • At 30∘C, the half life for the decomposition of AB2​ is 200 s and is independent of the initial concentration of AB2​. The time required for 80% of the AB2​ to…2022 · MCQ