NTA Abhyas NEET2020ChemistryChemical KineticsPractice
The rate law for reaction between the substances A and B is given by Rate = k A n B m On doubling the concentration of A and halving the concentration of B, the ratio of the new rate to the earlier rate of reaction will be
Options
- Am + n
- Bn - m
- C2 n - m
- D2 m + n
Correct answer
C. 2 n - m
Step-by-step solution
E a r l i e r R a t e = k [ A ] n [ B ] m N e w r a t e = k [ 2 a ] n [ 1 2 b ] m N e w R a t e E a r l i e r R a t e = [ 2 ] n [ 1 2 ] m = [ 2 ] n − m