The Haber Process

What is the formula of ammonia

NH3

What catalyst is used in the haber process

iron

What is the temperature used for the haber process

450 degrees celsius

What is the pressure used in the haber process

200atm

What is the ammonia used to produce

Fertilisers

Where do we get the nitrogen from

The air

Where do we get the hydrogen from

Made from hydrocarbons like methane

Is the forward reaction exothermic or endothermic

Exothermic

How is the mixture separated to obtain ammonia

Fed into a condenser and the ammonia condenses into liquid ammonia

What 3 things need to be considered when evaluating the conditions used

Percentage yield, rate of reaction and cost

What temperature is required to achieve a high percentage yield

Low

Why is a low temperature not used

As the rate of reaction would be too slow

What is another drawback of high temperatures

It is expensive

What pressure is required for a high percentage yield

High pressure

What is high pressure also useful for

A higher rate of reaction

What are the two issues with high pressure

High cost and safety concerns