COMEDK2019ChemistryChemical Kinetics
In a first order reaction, molar concentration of a reactant decreases from 0.1 to 0.01 in 100 ~s . The rate constant of the reaction is
Options
- A2.3030
- B0.02303
- C0.2303
- D0.002303
Correct answer
B. 0.02303
Step-by-step solution
[A₀ ]=0.1 aligned [A_ t ] &=0.01 t &=100 ~s aligned 1st order reaction, aligned k &= 2303 t [A₀ ] [A_ t ] &= 2303 100 0.1 0.01 =0.02303 ~s ⁻¹ aligned