As per the given chemical equation, 1 mole of Cl₂ is formed when 87.9 kJ of heat is absorbed.
Therefore, 250.0 kJ of heat will yield
\frac{1 mol Cl2}{87.9 kJ } \\ x 250.0 kJ = 2.84 mol Cl₂
Molar mass of mol Cl₂ = 71 g /mol
Mass of Cl₂ =2.84 mol Cl₂ x 71 g /mol = 201.64 g
201.64 g of Cl₂ will be produced along with 250.0 kJ of heat in the given reaction.
