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Vadim26 [7]
3 years ago
13

What is the standard enthalpy change for the decomposition of one mole of SO3?

Chemistry
1 answer:
aleksklad [387]3 years ago
5 0

Answer:

see explanation

Explanation:

SO₃(g) + 395.77 Kj/mole => S°(s) + 3/2O₂(g)

The standard heat of formation for SO₃(g) is given by the following rxn:

S°(s) + 3/2O₂(g) => SO₃(g) + 395.77 kJ/mole. Reversing this reaction is the decomposition of SO₃(g) into its basic elements in their standard state (25°C, 1atm) and is endothermic with +295.77Kj/mole.

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