Chemical Kinetics Question 97
Question: Which of the following rate laws has an overall order of 0.5 for reaction involving substances $ x $ , $ y $ and $ z $ [AIIMS 1983]
Options:
A) Rate $ =K(C_{x}),(C_{y}),(C_{z}) $
B) Rate $ =K{{(C_{x})}^{0.5}},{{(C_{y})}^{0.5}},{{(C_{z})}^{0.5}} $
C) Rate $ =K{{(C_{x})}^{1.5}},{{(C_{y})}^{-1}}{{(C_{z})}^{0}} $
D) Rate $ =K(C_{x}),{{(C_{z})}^{n}}/{{(C_{y})}^{2}} $
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Answer:
Correct Answer: C
Solution:
Order of reaction is sum of the power raised on concentration terms to express rate expression.
