NTA Abhyas NEET2020ChemistryChemical KineticsPractice
Consider the decomposition of N 2 O 5 as N 2 O 5 → 2 N O 2 + 1 2 O 2 The rate of reaction is given by - d [ N 2 O 5 ] d t = 1 2 d [ N O 2 ] d t = 2 d [ O 2 ] d t = k 1 [ N 2 O 5 ] Therefore, - d [ N 2 O 5 ] d t = k 1 [ N 2 O 5 ] + d [ N O 2 ] d t = 2 k 1 [ N 2 O 5 ] = k 1 ' [ N 2 O 5 ] d [ O 2 ] d t = 1 2 k 1 [ N 2 O 5 ] = k 1 " [ N 2 O 5 ] Choose the correct option.
Options
- A4 k 1 = 2 k 1 ' = k 1 "
- B4 k 1 = k 1 ' = 2 k 1 "
- Ck 1 = 2 k 1 ' = k 1 "
- D2 k 1 = k 1 ' = 4 k 1 "
Correct answer
D. 2 k 1 = k 1 ' = 4 k 1 "
Step-by-step solution
- d [ N 2 O 5 ] d t = 1 2 d [ N O 2 ] d t = 2 d [ O 2 ] d t k 1 [ N 2 O 5 ] = 1 2 k 1 ' [ N 2 O 5 ] = 2 × k 1 " [ N 2 O 5 ] k 1 = 1 2 k 1 ' = 2 k 1 " = 2 k 1 = k 1 ' = 4 k 1 "