Advertisements
Advertisements
प्रश्न
Industrially, ammonia is obtained by direct combination of nitrogen and hydrogen.
(i) Write balanced equation for the direct combination of nitrogen and hydrogen.
(ii) Which of the metals - iron, platinum, copper - catalyse this direct combination?
(iii) Is the formation of ammonia promoted by high pressure or low pressure?
Advertisements
उत्तर
(i) The reactants nitrogen and hydrogen combine to form ammonia at low temperature, high pressure in presence of catalyst to for maximum yield of ammonia . The balanced equation for the reaction is:
\[\ce{N2 + 3H2 <=> 2NH3 +heat}\]
(ii ) Iron acts as catalyst.
(iii ) Since the forward reaction occurs with decrease in volume, according to Le Chatelier's principle, high pressure favours the formation of ammonia.
Key: Haber's process
APPEARS IN
संबंधित प्रश्न
Write balanced chemical equations for the following:
An equation to illustrate the reducing nature of ammonia.
Name the gas evolved in each of the following cases :
Ethene undergoes hydrogenation reaction.
Name the following
Substance used to dry ammonia
Name the following
Salt used to clean metal surface before soldering, tinning, etc.
Ammonia is manufactured by Haber Process.
In what ratio by volume, are the above reactants used.
Describe all what you will observe and write chemical equation, when limited amount of ammonia gas is passed through the following aqueous solution:
CrCl3
Write the equation for:
The preparation of ammonia from ammonium chloride and calcium hydroxide.
Write a balanced chemical equation for the lab preparation of ammonia.
On passing ammonia gas over heated copper oxide for some time, a reddish-brown residue is left behind. What property of ammonia is demonstrated here?
