The electron gain enthalpy of chlorine is 348 kJ mol-1. How much energ

1.	The electron gain enthalpy of chlorine is 348 kJ mol-1. How much energy in kJ is released when 17.5 g of chlorine is completely converted into Cl ions in the gaseous state?
Answer» Cl_(g) + e^- → Cl^- _(g) ∆H = 348 kJ mol^-1 For one mole (35.5g) 348 kJ is released. ∴ For 17.5g chlorine, (348 KJ / 35.5 g) x 17.75 energy leased. ∴ The amount of energy released = 348/2 = 174 kJ.

The electron gain enthalpy of chlorine is 348 kJ mol-1. How much energy in kJ is released when 17.5 g of chlorine is completely converted into Cl ions in the gaseous state?

Answer»

Cl_(g) + e^- → Cl^- _(g)

∆H = 348 kJ mol^-1

For one mole (35.5g) 348 kJ is released.

∴ For 17.5g chlorine, (348 KJ / 35.5 g) x 17.75 energy leased.

∴ The amount of energy released = 348/2 = 174 kJ.