Reversible Reactions | Haber Process | Full Lesson (click for video preview)

What is the compromise between yield and rate of reaction for industrial processes? What is the Haber process And what are the conditions? Who is Fritz Haber? All this and more covered in this comprehensive lesson with questions and answers! This is a Year 12 A level lesson for Edexcel International Unit 2 – WCH12, but it can also be used for all UK exam boards. All the slides in this lesson are fully animated and include answers to every mini plenary question and exam question. The breakdown of the slides (which are best opened on Microsoft PowerPoint) is as follows:

Slide 1 - Title and 5-minute starter. The starter is a grid of four questions entitled ‘last week, last lesson, today’s learning and future learning’. Use this generic slide for all of your lessons by simply changing the questions and the answers each time.
Slide 2 - Lesson objectives (see thumbnail image)
Slide 3 – Fritz Haber: the man or the monster? This slide is to stimulate a healthy discussion and to whet the appetites of the students
Slide 4-this slide introduces the reaction of the Haber process, including the enthalpy change and the conditions which guarantee the maximum yield of ammonia, theoretically
Slide 5 - the low temperature = slower rates of reaction conundrum is presented to the students. How can this challenge be resolved?
Slides 6 - 9: graphical exploration of the optimal conditions for the Haber process. Prints slides 7-8 so that the students can glue into their books
Slide 10 - explanation of why the percentage yield for the Haber process is only 15%
Slide 11 - justification for the use of a temperature of 450°C in the Haber process
Slide 12 - justification for the use of a pressure of 250 atmospheres in the haber process
Slides 13 - 15: applied learning time (ALT). This is a chance for students to re consolidate their learning by answering a series of graded questions which increase in difficulty. Answers animates on the screen as you click when you are ready to review their learning. Print slides 14-15 so students can have the questions in front of them rather than copying from the board.
Slides 16 – 17: Exam questions with mark scheme answers (included with the purchase of this resource)

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