Time required to decompose SO2Cl2 to half of its initial amount is 60 minutes. If the decomposition is a first order reaction, the rate constant of the reaction is

Question

Time required to decompose SO2Cl2 to half of its initial amount is 60 minutes. If the decomposition is a first order reaction, the rate constant of the reaction is (A) 1.92 × 10-4 s -1 (B) 3 × 10-2 s -1 (C) 5 × 10-3 s -1 (D) 4.75 × 10-4 s -1

Tardigrade Admin · Accepted Answer

For a first order reaction, k=(0.693/t12 ) or k =(0.693/60×60) =1.925×10-4 s-1

Q. Time required to decompose $S O_{2} C l_{2}$ to half of its initial amount is $60$ minutes. If the decomposition is a first order reaction, the rate constant of the reaction is

$1.92 \times 1 0^{- 4} s^{- 1}$

$3 \times 1 0^{- 2} s^{- 1}$

$5 \times 1 0^{- 3} s^{- 1}$

$4.75 \times 1 0^{- 4} s^{- 1}$

For a first order reaction, $k = \frac{0.693}{t 12}$
or $k = \frac{0.693}{60 \times 60} = 1.925 \times 1 0^{- 4} s^{- 1}$

Q. Time required to decompose SO2​Cl2​ to half of its initial amount is 60 minutes. If the decomposition is a first order reaction, the rate constant of the reaction is

1.92×10−4s−1

3×10−2s−1

5×10−3s−1

4.75×10−4s−1