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The reversible reaction 2 SO2 (g) + O2 (g) <-> 2 SO3 (g) has a delta H value of -197 kJ/mol. Use Le Chatelier's principle to explain what conditions would give the highest equilibrium yield and why industry uses different conditions. (5 marks)

Le Chatelier's principle states that if a system is disturbed - something changes - the system will tend to move in the direction that minimises the change. 3 marks from: The forward reaction is exothermic (...
CC
Answered by Conor C. • Chemistry tutor
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Potassium forms an ionic compound with sulfur. Describe what happens when two atoms of potassium react with one atom of sulfur. Give your answer in terms of electron transfer. Give the formulae of the ions formed.

Potassium (K) is in group 1 of the periodic table, therefore it has 1 electron in it's outer shell. Sulfur is in group 6 so it has 6 electrons in it's outer shell. Ionic bonds occur when electrons are transf...
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Answered by Aashish A. • Chemistry tutor
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How do I write a successful essay under exam conditions?

It can be difficult to make sure that you are answering the question that has been asked of you under the stress of exam conditions. To overcome this I would recommend that you first make a checklist at the ...
JC
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Given y = 2sin(θ) and x = 3cos(θ) find dy/dx.

The function is defined parametrically so we usually approach these questions using chain rule.Recall that: dy/dθ * dθ/dx = dy/dx So we will need to differentiate each expression individually then multiply t...
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Answered by Jacob C. • Maths tutor
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work out 3 1/2 - 2 1/3. Give answer as an improper fraction

change everything to sixths. 21/6 - 14/6 = 7/6
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Answered by Maiya S. • Maths tutor
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