The unit of second order reaction rate constant is;

Question

The unit of second order reaction rate constant is; (A)  L-1 ⋅ mol ⋅ s-1  (B)  L2 ⋅ mol-2 ⋅ s-1  (C)  L ⋅ mol-1 ⋅ s-1  (D)  s-1

Tardigrade Admin · Accepted Answer

According to second order reaction 2A → product rate of reaction (d [A]/dt) propto [A]2 or (dA/dt)=K[A]2 k = reaction rate constant then unit of second order reaction rate constant K=-(d[A]/dt)× (1/[A]2) =(1/s.mol L-1) or L mol-1 s-1

Q. The unit of second order reaction rate constant is;

$L^{- 1} \cdot m o l \cdot s^{- 1}$

$L^{2} \cdot m o l^{- 2} \cdot s^{- 1}$

$L \cdot m o l^{- 1} \cdot s^{- 1}$

$s^{- 1}$

Q. The unit of second order reaction rate constant is;

L−1⋅mol⋅s−1

L2⋅mol−2⋅s−1

L⋅mol−1⋅s−1

s−1

According to second order reaction 2A→ product rate of reaction dtd[A]​∝[A]2 or dtdA​=K[A]2 k= reaction rate constant then unit of second order reaction rate constant K=−dtd[A]​×[A]21​ =s.molL−11​ or Lmol−1s−1

$L^{- 1} \cdot m o l \cdot s^{- 1}$

$L^{2} \cdot m o l^{- 2} \cdot s^{- 1}$

$L \cdot m o l^{- 1} \cdot s^{- 1}$

$s^{- 1}$