For reaction
$Cl_2(aq) + H_2S(aq) \to S(s) + 2H^+(aq) + 2Cl^-(aq)$ rate law is $r = K[Cl_2][H_2S]$
then which of these mechanism is/are consistent with this rate law
$(A)\, H_2S \rightleftharpoons H^+ + HS^-$ (fast)
$Cl_2 + HS^-\to 2Cl^-+ H^+ + S$ (slow)
$(B)\, Cl_2 + H_2S \to H^+ + Cl^-+ Cl^+ + HS^-$ (slow)
$Cl^+ + HS^-\to H^+ + Cl^-+ S$ (fast)
Both $(A)$ and $(B)$
$A$ only
$B$ only
Neither $A$ nor $B$
The rate law for a reaction between the substances $ A $ and $B$ is given by, rate $= k{[A]^n}{[B]^m}$. On doubling the concentration of $A$ and halving the concentration of $B$, the ratio of the new rate to the earlier rate of the reaction will be as
Which one of the following is wrongly matched
From the rate expression for the following reactions, determine their order of reaction and the dimensions of the rate constants.
$(ii)$ $H _{2} O _{2}( aq )+3 I ^{-}( aq )+2 H ^{+} \rightarrow 2 H _{2} O ( l )+ I _{3}^{-} \quad$ Rate $=k\left[ H _{2} O _{2}\right][ I ]$
The following data was obtained for chemical reaction given below at $975\, \mathrm{~K}$.
$2 \mathrm{NO}_{(\mathrm{g})}+2 \mathrm{H}_{2(\mathrm{~g})} \rightarrow \mathrm{N}_{2(\mathrm{~g})}+2 \mathrm{H}_{2} \mathrm{O}_{(\mathrm{g})}$
$[NO]$ $\mathrm{mol} \mathrm{L}^{-1}$ |
${H}_{2}$ $\mathrm{mol} \mathrm{L}^{-1}$ |
Rate $\mathrm{mol}L^{-1}$ $s^{-1}$ |
|
$(A)$ | $8 \times 10^{-5}$ | $8 \times 10^{-5}$ | $7 \times 10^{-9}$ |
$(B)$ | $24 \times 10^{-5}$ | $8 \times 10^{-5}$ | $2.1 \times 10^{-8}$ |
$(C)$ | $24 \times 10^{-5}$ | $32 \times 10^{-5}$ | $8.4 \times 10^{-8}$ |
The order of the reaction with respect to $\mathrm{NO}$ is ..... .
Write general reaction. Write rate law of general reaction.