Chemical Kinetics Question 277
Question: The rate law for the reaction $ 2X+Y\to Z $ is Rate $ =k[ X ][ Y ]. $ The correct statement with regard to this relation is
Options:
A) the unit of k is $ {s^{-1}} $
B) the rate of the reaction is independent of [X] and [Y]
C) for this reaction $ {t_{1/2}} $ is independent of initial concentrations of reactant
D) the rate of formation of Z is half of the rate of disappearance of X
Show Answer
Answer:
Correct Answer: D
Solution:
[d] The given reaction is: $ 2X+Y\xrightarrow{{}}Z $
$ -\frac{d[X]}{2dt}=\frac{d[Z]}{dt} $
$ \therefore $ Rate of formation of Z is half of the rate of disappearance of X.
