How much heat is evolved if 0.600 kg of SO₂ is burned in excess oxygen? 2SO₂(g) + O₂(g) → 2SO₃(g) heat of reaction = −198 kJ/mol

Question

Quizplus · Accepted Answer

The given chemical equation shows that 2 moles of SO₂ release 198 kJ of heat when burned in excess oxygen. First, convert 0.600 kg of SO₂ to moles (assuming SO₂ represents a generic compound with a molar mass M). The number of moles (n) = mass (kg) / molar mass (kg/mol). Without the molar mass, we directly use the given heat of reaction per mole to find the total heat evolved. Since 198 kJ is evolved per 2 moles, for n moles, the heat evolved (q) = (n / 2) * 198 kJ. Without the exact molar mass, we cannot calculate the exact number of moles from 0.600 kg, but the correct approach involves using the given heat of reaction and the stoichiometry of the reaction to find the total heat evolved. The correct answer must be determined based on the information given in the question and the stoichiometry of the reaction. Since the calculation details and the molar mass are not provided, the correct answer choice is based on understanding the stoichiometry and the heat of reaction provided.

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