MHT CET202411 May 2024Evening ShiftChemistryChemical KineticsActual
Rate law for a reaction is r = k [ A ]^2[ ~B ] . If rate constant is 6.25 ~mol ⁻² dm ^6 ~s ⁻¹ , what is the rate of reaction when [ A ]=1 ~mol dm ⁻³ and [ B ]=0.2 ~mol dm ⁻³ ?
Options
- A1.250 ~mol dm ⁻³ sec ⁻¹
- B2.125 ~mol dm ⁻³ sec ⁻¹
- C3.105 ~mol dm ⁻³ sec ⁻¹
- D2.0 10⁻² ~mol dm ⁻³ sec ⁻¹
Correct answer
A. 1.250 ~mol dm ⁻³ sec ⁻¹
Step-by-step solution
aligned & r = k [ A ]^2[ ~B ]=6.25 (1)^2 0.2 &=6.25 0.2=1.250 ~mol dm ^ -3s aligned