Back to the full dot-point answer
EnglandChemistryQuick questions
C6 Global challenges
Quick questions on The Haber process and fertilisers - OCR GCSE Chemistry A (J248)
1short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is pressure?Show answer
There are 4 moles of gas on the left ( nitrogen hydrogen) and 2 moles on the right (ammonia). A higher pressure shifts the equilibrium towards the side with fewer moles of gas (the ammonia side), so it increases the yield, and it also increases the rate. But very high pressures are expensive (strong pipes and vessels) and dangerous, so about atm is a compromise between yield and the cost and safety of the equipment.
Have a question we have not covered?
This dot-point answer is short enough that we have not extracted many short questions yet. Read the full dot-point answer or ask Mo, our study assistant, in the chat for follow ups.