For the reaction,

CHEMISTRY · Subjective · A Level · Chemistry · Rate equations · Rate equations

Problem

For the reaction,

2\text{NO} + \text{H}_2 \rightarrow \text{N}_2\text{O} + \text{H}_2

, the value of

-\frac{dP}{dt}

was found to be

1.5 \text{ Pa s}^{-1}

for a pressure of

359 \text{ Pa}

\text{NO}

and

0.25 \text{ Pa s}^{-1}

for a pressure of

152 \text{ Pa}

\text{NO}

. The pressure of

\text{H}_2

being constant. If pressure of

\text{NO}

was kept constant, the value of

-\frac{dP}{dt}

was found

1.60 \text{ Pa s}^{-1}

for a pressure of

\text{H}_2

289 \text{ Pa}

and

0.79 \text{ Pa s}^{-1}

for a pressure of

147 \text{ Pa}

\text{H}_2

. Calculate the order of reaction.