Question

Which of the following rate laws has an overall order of 0.5 for reaction involving substances $x, y$ and $z$ ?

• A. Rate $=k\left[C_{x}\right]\left[C_{y}\right]\left[C_{z}\right]$
• B. Rate $=k\left[C_{x}\right]^{0.5}\left[C_{y}\right]^{0.5}\left[C_{z}\right]^{0.5}$
• C. Rate $=k\left[C_{x}\right]^{1.5}\left[C_{y}\right]^{-1}\left[C_{z}\right]^{0}$
• D. Rate $=k\left[C_{x}\right]\left[C_{z}\right]^{2} /\left[C_{y}\right]^{2}$

Answer 1

Answer: (C)

Order of reaction $= 1.5 - 1 + 0 = 0.5$