Question

Consider the following reaction:
$H_2\left(g\right)+I_2\left(g\right)\to 2HI\left(g\right)=k\left[H_2\right]\left[I_2\right]$
Which one of the following statements is correct?

• A. The reaction must occur in a single step
• B. This is a second order reaction overall
• C. Raising the temperature will cause the value of $k$ to decrease
• D. Raising the temperature lowers the activation energy for the reaction

Answer 1

Answer: (B)

This is a second order reaction overall

The net order is 2.
So the net reaction is second order.