Question

The rate of a reaction is expressed in different ways as follows:
$\frac{1}{2}\left(\frac{d\left[C\right]}{dt}\right)=-\frac{1}{3}\left(\frac{d\left[D\right]}{dt}\right)=\frac{1}{4}\left(\frac{d\left[A\right]}{dt}\right)=-\left(\frac{d\left[B\right]}{dt}\right)$
The reaction is

• A. $4A+B\to 2C+3D$
• B. $B+3D\to 4A+2C$
• C. $4A+2B\to 2C+3D$
• D. $B+\left(1/2\right)D\to 4A+3C$

Answer 1

The correct option is B $B+3D\to 4A+2C$

$B+3D\to 4A+2C\frac{-d\left[B\right]}{dt}=\frac{-1}{3}\frac{d\left[D\right]}{dt}=\frac{1}{4}\frac{d\left[A\right]}{dt}=\frac{\frac{1}{2}d\left[C\right]}{dt}$