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5.3 Dynamic Equilibria

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Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (24)

#1
Front (Question)

The Haber Process

Back (Answer)

The industrial process for creating ammonia

#2
Front (Question)

Haber Process word equation

Back (Answer)

Nitrogen + hydrogen ⇌ ammonia

#3
Front (Question)

Haber Process symbol equation

Back (Answer)

N2 + H2 ⇌ NH3

#4
Front (Question)

Energy change of nitrogen + hydrogen -> ammonia

Back (Answer)

Exothermic

#5
Front (Question)

Energy change of ammonia -> nitrogen + oxygen

Back (Answer)

Endothermic

#6
Front (Question)

How is nitrogen for the Haber Process obtained

Back (Answer)

From the air

#7
Front (Question)

How is hydrogen for the Haber Process obtained

Back (Answer)

From hydrocarbons (like natural gas)

#8
Front (Question)

Temperature for the Haber Process

Back (Answer)

450°C

#9
Front (Question)

Pressure for Haber Process

Back (Answer)

200 atmospheres

#10
Front (Question)

Catalyst for the Haber Process

Back (Answer)

Iron

#11
Front (Question)

Atmospheres symbol

Back (Answer)

atm

#12
Front (Question)

Why isn’t the pressure of the Haber Process too low

Back (Answer)

High pressure favours the forward reaction which produces less gas molecules for a higher yield

#13
Front (Question)

Why isn’t the pressure for the Haber Process too high

Back (Answer)

It would be too expensive to build a plant that could withstand high pressures

#14
Front (Question)

Why isn’t the temperature of the Haber Process too high

Back (Answer)

The forward reaction is exothermic so lower temperatures mean higher yield

#15
Front (Question)

Why isn’t the temperature of the Haber Process too low

Back (Answer)

Higher temperatures give a higher rate of reaction

#16
Front (Question)

What factors should be considered during an industrial reaction

Back (Answer)

-Cost of acquiring raw materials -Cost of energy -Conditions of reaction

#17
Front (Question)

What happens if the cost of extracting raw materials for an industrial process is high

Back (Answer)

It may not be profitable to make the product

#18
Front (Question)

What counts towards the energy costs for an industrial process

Back (Answer)

-Reaching the conditions -Maintaining the conditions

#19
Front (Question)

What conditions make a reaction more expensive

Back (Answer)

Higher temperatures and pressures

#20
Front (Question)

How are the conditions in an industrial process a compromise

Back (Answer)

-Control conditions to maximise yield -Control conditions for high rate of reaction

#21
Front (Question)

How does a high rate of reaction affect equilibrium

Back (Answer)

Equilibrium will be reached faster

#22
Front (Question)

Three elements in fertilisers

Back (Answer)

-Nitrogen -Phosphorus -Potassium

#23
Front (Question)

Why are fertilisers used

Back (Answer)

Increase crop yield

#24
Front (Question)

Give two ways fertilisers increase crop yield

Back (Answer)

-Crops grow bigger -Crops grow faster