Question

Ammonia catalytically is oxidized in presence of platinum.
State you observations ...

Answer 1

In this demonstration a coiled platinum wire catalyst is used to catalyse the oxidation of ammonia. Similar heterogeneous catalysts are used extensively in industry because they are robust at high temperatures, which allows for a wide range of operating conditions. An additional benefit is there are no extra steps required to separate the catalyst from the product. Typically, gaseous reactants enter a tubular reactor at one end, pass over a supported catalyst and the products are collected at the other end. Catalytic converters used to oxidise carbon monoxide and hydrocarbons, and reduce nitrous oxides in automobile exhaust fumes are based on the same simple design.

Answer 2

Hola mate

Here is your answer -

Observation

▶The colorless ,pungent smelling gas nitric oxide emits which on further oxidation gives a reddish brown gas which is nitrogen dioxide.

▶Platinum continues to glow even when heating is discontinued as the reaction done is an exothermic reaction.

▶Water droplets are seen at the inner surfaces of glass tube.