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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?
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
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संबंधित प्रश्न
A gas ‘A’ reacts with another gas ‘B’ in the presence of a catalyst to give a colourless gas ‘C’. The gas ‘C’ when comes in contact with air produces a brown gas ‘D’. The solution of ‘A’ in water turns red litmus blue. Explain the observations.
Give balanced chemical equations for of the following :
Reaction of ammonia with excess chlorine.
Give balanced equation of :
Action of heat an a mixture of copper an nitric acid
Give balanced reactions for the following conversion:
Ammonia to nitrogen using oxygen.
Give balanced equation to prove that ammonia Has the element nitrogen in it.
Complete and balance the equation: CuO(heated) + NH3 →
(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)?
Write the equation for the reaction in the Haber process, that forms ammonia.
Write the equations for the following reactions, which result in the formation of ammonia:
(i) A mixture of ammonium chloride and slaked lime is heated.
(ii) Aluminium nitride and water.
State one relevant observation for the following:
Burning of ammonia in excess of oxygen.
