Find the Heat Absorbed from the Surroundings When 15 G $\rarr$

Multiple Choice

Find the heat absorbed from the surroundings when 15 g of O₂ reacts according to the equation O + O₂ $\rarr$ O₃, $\Delta$ H ^$\circ$ _rxn= -103 kJ/mol.

A) 4.6 * 10^-3 kJ
B) 32 kJ
C) 48 kJ
D) 96 kJ
E) 110 kJ