Question

A hypothertical reaction, A₂ + B₂¾® 2AB follows the mechanism as given below ;

A₂ $\rightleftharpoons \rightleftarrows$ A + A …(Fast)

A + B₂ ¾® AB + B …(Slow)

A + B ¾® AB … (Fast)

The order of the overall reaction is –

• A. 2
• B. 1
• C. $1\frac{1}{2}$
• D. Zero

Answer 1

Answer: (C)

$1\frac{1}{2}$

Answer 2

r = K[A][B₂]