AIIMS2009ChemistryChemical Kinetics
In a homogenous reaction A B+C+D the initial pressure was P₀ and after time t it was P . Expression for rate constant k in terms of P₀ , P and t will be
Options
- Ak= 2.303 t 2 P₀ 3 P₀-P
- Bk= 2.303 t 2 P₀ P₀-P
- Ck= 2.303 t 3 P₀-P 2 P₀
- Dk= 2.303 t 2 P₀ 3 P₀-2 P
Correct answer
A. k= 2.303 t 2 P₀ 3 P₀-P
Step-by-step solution
A B+C+D array lllll Initial & a & 0 & 0 & 0 After time t a-x & x & x & x array From (i), P₀+2 x=P or x= P-P₀ 2 From rate equation k= 2.303 t a a-x = 2.303 t P₀ P₀- ( P-P₀ 2 ) = 2.303 t 2 P₀ 3 P₀-P