Rate Constant
Trending Questions
Q. For the non-stoichiometric reaction 2A + B ⟶ C + D. The following kinetic data were obtained in three separate experiments, all at 298 K.
The rate law for the formation of C is :
(IIT-JEE-2014)
Initial concentration (A) | Initial concentration (B) | Initial rate of formation of C (molL1S−1) |
0.1M | 0.1M | 1.2×10−3 |
0.1M | 0.2M | 1.2×10−3 |
0.2M | 0.1M | 2.4×10−3 |
The rate law for the formation of C is :
(IIT-JEE-2014)
- dcdt=k[A]2[B]
dcdt=k[A][B]2
- dcdt=k[A][B]
dcdt=k[A]
Q.
A reaction : A2+B→ Products, involves the following mechanism :
A2⇌ 2A (fast) (A being the intermediate)
A+B→k2(slow).The rate law consistent to this mechanism is :
rate=k[A2]2[B]
rate=k[A2]12[B]
rate=k[A2][B]
rate=k[A2][B]2
Q. The specific rate constant of a first order reaction depends on the:
- concentration of the reactant
- concentration of the product
- time
- temperature
Q.
Representation of reactants and products of a given chemical reaction is called:
Chemical equilibria
Periodic table
Chemical equation
Chemical formulae
Q.
The chemical reaction 2O3→3O2 involves two elementary steps :
O3fast−−→O2+O;O+O3Slow−−−→2O2
The differential rate law expression will be :
rate=k[O3]2[O2]
rate=k[O3]2[O2]−3
rate=k[O3]2
rate=k[O3]2[O2]−1