Search for question
Question

The products produced in the reaction between nitrogen monoxide and hydrogen depend on the reaction conditions. Two possible reactions are shown below: \text { (A) } 2 \mathrm{NO}(\mathrm{g})+\mathrm{H}_{2}(\mathrm{~g}) \rightarrow \mathrm{N}_{2}

\mathrm{O}(\mathrm{g})+\mathrm{H}_{2} \mathrm{O}(\mathrm{g}) \text { (B) } \mathrm{NO}(\mathrm{g})+\mathrm{H}_{2}(\mathrm{~g}) \rightarrow 1 / 2 \mathrm{~N}_{2}(\mathrm{~g})+\mathrm{H}_{2} \mathrm{O}(\mathrm{g}) When the reaction is monitored at 950 °C, it is observed that the total pressure decreases from an initial value of 87 kPa to 64 kPa after 80% of the molecules have reacted. Based on this information, deduce if reaction (A) or reaction (B) takes place at this temperature. Show all steps in your working.

Fig: 1

Fig: 2

Fig: 3

Fig: 4