How much heat is evolved if 0.600 kg of SO₂ is burned in excess oxygen? 2SO₂(g)+ O₂(g)→ 2SO₃(g)ΔH°_rxn = -198 kJ/mol A)5.46 × 10-2 kJ B)927 kJ C)1.85 × 10³ kJ D)59,400 kJ E)3.71 × 10³ kJ

Question

Quizplus · Accepted Answer

The enthalpy change for the reaction is -198 kJ/mol. This means that for every mole of SO2 that reacts, 198 kJ of heat is evolved. To find the heat evolved for 0.600 kg of SO2, we need to convert the mass to moles and then multiply by the enthalpy change.0.600 kg SO2 * (1 mol SO2 / 64.07 g SO2) = 9.36 mol SO29.36 mol SO2 * (-198 kJ/mol) = -1.85 * 10^3 kJTherefore, the heat evolved is 1.85 * 10^3 kJ.

How Much Heat Is Evolved If 0