The production of ammonia Flashcards

1
Q

What are the raw materials for the Haber process?

A

Nitrogen and hydrogen.

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2
Q

Nitrogen is obtained how?

A

From the air.

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3
Q

Hydrogen is obtained how?

A

From natural gas or other sources.

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4
Q

What catalyst is used in the Haber process?

A

A catalyst of iron.

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5
Q

What temperature is used in the Haber process?

A

About 450C.

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6
Q

What pressure is the Haber process conducted at?

A

200 atm.

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7
Q

How is ammonia removed?

A

Upon cooling ammonia liquifies first and is removed. The hydrogen and nitrogen present are recycled in this process.

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8
Q

What term is used to describe when a reversible reaction closed system has the same rate of reaction in both directions?

A

Equilibrium.

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9
Q

The relative amounts of each reactant in equilibrium depends upon what?

A

The conditions of the reaction.

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10
Q

If the temperature is raised the yield from the exothermic reaction…

A

…decreases.

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11
Q

If the temperature is raised the yield from the endothermic reaction…

A

…increases.

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12
Q

If the temperature is lowered the yield from the exothermic reaction…

A

…increases.

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13
Q

If the temperature is lowered the yield from the endothermic reaction…

A

…decreases.

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14
Q

In a gaseous reaction what happens if the pressure is increased?

A

The reaction favours the side with the least molecules as shown by the symbol equation for that reaction.

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15
Q

What factors can determine the optimum conditions in industrial processes such as the Haber process?

A

Rates of reaction.
Pressure.
Temperature.

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