Question

formation of NH3 is reversible and exothermic process what will happen on Cooling

Answer 1

Answer:

Explanation:

The formation of ammonium chloride from ammonia and hydrogen chloride is exothermic (heat released or heat given out to the surroundings - the cooler parts of the test tube). This means if the direction of chemical change is reversed, the energy change is also reversed.

Answer 2

Answer:

On Cooling NH3 more product of Ammonia(NH3) will be formed.

Why yield of Ammonia increases on cooling?

• The yield of ammonia can be altered by altering the reaction's pressure or temperature because the Haber process is a reversible reaction.
• The yield of ammonia rises as reaction pressure is raised. The equipment required to safely contain the reaction, however, becomes exceedingly expensive if the pressure is made to be too high.
• The yield of ammonia in the reaction actually declines as reaction temperature rises. This implies that a lower temperature would result in a higher yield of ammonia.
• 200 atmospheres of pressure were chosen to provide a respectable yield and an accelerated rate of reaction.
• Any higher than this would result in considerable equipment cost increases because the equipment would need to be much more durable to withstand the higher pressure. Explosion risk is also increased by higher pressure.
• A temperature of 450°C-was used to provide a respectable yield and maintain a rapid rate of reaction.
• This results in a consistent production of a good yield of ammonia when paired with the usage of the hot iron catalyst. There is extremely minimal waste of the reactants because the hydrogen and nitrogen are recycled.

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