question_answer

For the reaction \[{{H}_{2}}(g)+{{I}_{2}}(g)\]⇌\[2HI(g)\], the rate of reaction is expressed as  [CBSE PMT 1997; AIEEE 2002]

A)                 \[-\frac{\Delta [{{I}_{2}}]}{\Delta t}=-\frac{\Delta [{{H}_{2}}]}{\Delta t}=\frac{1}{2}\frac{\Delta [HI]}{\Delta t}\]

B)                 \[\frac{\Delta [{{I}_{2}}]}{\Delta t}=\frac{\Delta [{{H}_{2}}]}{\Delta t}=\frac{\Delta [HI]}{2\Delta t}\]

C)                 \[\frac{\Delta [{{H}_{2}}]}{\Delta t}=\frac{1}{2}\frac{\Delta [{{I}_{2}}]}{\Delta t}=-\frac{\Delta [HI]}{\Delta t}\]

D)                 None of these