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2SO2(g) + O2(g) 2SO3. In the reaction above, the standard heats of formation of SO2(g) ...

2SO2(g) + O2(g) 2SO3. In the reaction above, the standard heats of formation of SO2(g) and SO3(g) are -297 KJ mol-1 respectively. The heat change of the reaction is?

A. -99 kJ mol-
B. -198 kJ mol-
C. +198 kJ mol-
D. +683kJ mol-




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