This reaction is an exothermic reaction because it releases heat. - - PowerPoint PPT Presentation

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Mar 30, 2023 24 likes •105 views

N 2 (g) + 3 H 2 (g) 2 NH 3 (g) (H = 92.22 kJmol 1 ) This reaction is an exothermic reaction because it releases heat. (Shown on the products side (left)). The Haber Process is used to produce ammonia used in many

SLIDE 1

SLIDE 2

 N2 (g) + 3 H2 (g) ⇌ 2 NH3 (g)  (ΔH = −92.22 kJ·mol−1)  This reaction is an exothermic reaction

because it releases heat. (Shown on the products side (left)).

SLIDE 3

 The Haber Process is used to produce

ammonia used in many different ways. It is a process which is used as a fertilizer (nitrogen fertilizer) but also during World War One it was then changed in

ther substances to be used as

explosives and weapons

SLIDE 4

 The Haber Process was created by Fritz

Haber a German Chimist in 1909, born in Germany.

 He also was rewarded with a Noble Prize

in 1918.

SLIDE 5

 This reaction has to be carried out at

very high temperatures; between 350- 500oC, and has to be between 15- 25mPa.

SLIDE 6

 With Le Chatelier’s Principle: the forward

reaction is favoured by: removing the product, the equilibrium reaction will make more product which is in this direction -> (forward)

 What happens is that the mixture tries to

get back to the original form, the form which it was before product was remove.

 When heat is removed from an exothermic

reaction to cool down, the products side will also be favoured making the forward reaction favoured.

SLIDE 7

 The type of catalyst used in this reaction

is the iron catalyst (K2O, CaO and Al2O3)

SLIDE 8

 Today the Haber Process is important, it

maintains one third of the earth’s population with it’s nitrogen fertilizer, BUT it is a very bad substance for the

environment. Per year, the Haber