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?

First, we determine the amount of sulfur dioxide being burned in moles.

Molar mass = 32 + 16 * 2
Molar mass = 64 g/mol

Moles present = mass / Mr
Moles present = 0.6/64
Moles present = 0.009375

Next, the heat released per mole is given to us as being -198 kJ/mol

We multiply the number of moles by this to get:
198 * 0.009375 = 1.85625 kJ

1,856 Joules of energy will be released.

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The answer will be c