Sulfur tetrafluoride 1SF42 reacts slowly with O2 to form sulfur
tetrafluoride monoxide 1OSF42 according to the following
SF41g2 + O21g2¡OSF41g2
The O atom and the four F atoms in OSF4 are bonded to a
central S atom. (c) Use average bond enthalpies (Table 8.3) to estimate
the enthalpy of the reaction. Is it endothermic or exothermic?
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