A solid catalyst provides of active surface sites

CHEMISTRY · Single correct · A Level · Chemistry · Kinetics · Kinetics

Problem

A solid catalyst provides

3.0\times10^{-4}\,\text{mol}

of active surface sites. When

40\%

of the sites are occupied by reactant A, the surface reaction proceeds with a first‐order rate constant of

0.50\,\text{s}^{-1}

based on occupied sites. What is the initial rate of product formation? (a)

1.5\times10^{-4}\,\text{mol}\,\text{s}^{-1}

(b)

1.2\times10^{-4}\,\text{mol}\,\text{s}^{-1}

(c)

6.0\times10^{-5}\,\text{mol}\,\text{s}^{-1}

(d)

9.0\times10^{-5}\,\text{mol}\,\text{s}^{-1}