Please help it’s due today Estimate the heat evolved when 74.6 g of sulfur dioxide (molar mass = 64.07 g/mol) is
converted to sulfur dioxide for the given thermochemical equation.
SO2(g) + 12 O2(g)
SO3(g)
AH = -99.1 kJ/mol

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answer: enthalpy

explanation:

for a exothermic reaction, the energy is released i.e. the energy of the products is lower than the energy of the reactants.

= enthaply

= energy of products

= energy of reactants

as , thus comes out to be negative. negative value of enthalpy shows that the reaction is exothermic.