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0.04 moles of sulfur trioxide is placed in a flask (1.50dm^3) and allowed to reach equilibrium at 600 degrees. If 30% of the sulfur trioxide decomposes to sulfur dioxide and oxygen - what is the equilibrium constant?

The easiest way to start your answer is by writing out the equation for the reaction {2SO₃ (g) <-> 2SO₂ (g) + O₂ (g) } and considering what the equilibrium constant ...

Answered by Isobel W. • Chemistry tutor

2588 Views

What is the difference between 'ser' and 'estar'?

First of all, this is a great question and something which almost every English speaker struggles with when learning Spanish because we only use one verb to convey both uses of 'ser' and 'estar'. The main...

Answered by Kate H. • Spanish tutor

1644 Views

How high can you raise a kilogram of sugar with 1 kWh of electrical energy? (To 2 s.f in kilometres)

The first thing to recognise is that the terms 'sugar' and 'electrical' are there to confuse you - the substance raised and the type of form of energy used to raise it are not important to the question.

Answered by Alexander L. • Physics tutor

2607 Views

What caused the collapse of the Weimar Republic?

A useful way of tackling this question would be to split your ideas of the possible factors into those based on structural phenomena and those driven by the agency of individuals. In this way, your answer...

Answered by Sebastian B. • History tutor

2121 Views

Analyse the compositional strategy and style of Joshua Reynolds' "Admiral Lord Hood" (1783).

Standing proudly as he rests his hand on a rock next to him is naval officer Lord Samuel Hood, depicted in the foreground of a sea-battle scene from the Battle of All Saints, one of the key military succe...

Answered by Francesca C. • History of Art tutor

1750 Views