Advertisements
Advertisements
प्रश्न
Ammonia is manufactured by Haber Process.
Under what conditions do the reactants combine to form ammonia? Give a balanced equation for the reaction.
Advertisements
उत्तर १
The reactants nitrogen and hydrogen combine at low temperature and high pressure in the presence of a catalyst to form maximum yield of ammonia.
The balanced equation for the reaction is:
N2 + 3H2 ⇌ 2NH3 + Heat
उत्तर २
Conditions for reactants to combine :
Optimum temperature is 450o-500oC
Above 200 atm pressure
Finely divided iron as catalyst
Traces of molybdenum or Al2O3 as promoters.
Reaction: N2 + 3H2 ⇌ 2NH3 + Heat
APPEARS IN
संबंधित प्रश्न
Identify the substance underlined:
The catalyst used to oxide ammonia.
Name the gas evolved in each of the following cases :
Ammonia reacts with heated copper oxide.
Ammonia is manufactured by Haber Process.
In what ratio by volume, are the above reactants used.
(a) Name the catalyst used in 1(ii)
(b) In the reaction referred to in 1(ii), the catalyst glows red hot. Why?
(c) What is the name of the industrial process which starts with the reaction reffered to in 1 (ii)?
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?
Write the equation for the formation of ammonia by the action of water on magnesium nitride.
Write the equation for the following :
Ammonium chloride is treated with sodium hydroxide.
A compound which undergoes thermal dissociation.
Ranjana wants to prove that ammonia is a reducing agent. To demonstrate this, she passes ammonia gas over heated copper oxide. What will she observe?
Ranjana wants to prove that ammonia is a reducing agent. To demonstrate this, she passes ammonia gas over heated copper oxide.
Write a balanced chemical equation for the Black copper oxide changes to a reddish brown/pink copper reaction.
