MHT CET202310 May 2023Evening ShiftChemistryChemical KineticsActual
Calculate the rate constant for the first order reaction, A B if the rate of reaction is 5.4 10⁻⁶ ~mol dm ⁻³ ~s ⁻¹ and [ A ]=0.3 M .
Options
- A1.8 10⁻⁵ ~s ⁻¹
- B1.5 10⁻⁵ ~s ⁻¹
- C2.1 10⁻⁵ ~s ⁻¹
- D2.4 10⁻⁵ ~s ⁻¹
Correct answer
A. 1.8 10⁻⁵ ~s ⁻¹
Step-by-step solution
For the first order reaction, A B , Rate = k [ A ] aligned k & = Rate [ A ] = 5.4 10⁻⁶ ~mol dm ⁻³ ~s ⁻¹ 0.3 ~mol dm ⁻³ & =1.8 10⁻⁵ ~s ⁻¹ aligned