Question

Question 810 pts

What type of reaction and how much energy is involved in a reaction of silicon tetrachloride with water?

SiO_2(s) +4HCl_(g) ⟷ SiCl_4(g) + 2H₂O_(g) ΔH= +139.5 kJ/mole

Group of answer choices

Endothermic with ΔH = -139.5 kJ/mole.

Exothermic with ΔH = -139.5 kJ/mole.

Endothermic with ΔH = +139.5 kJ/mole.

Exothermic with ΔH = -0.007168 kJ/mole.

Exothermic with ΔH = +139.5 kJ/mole.

Answer 1

Endothermic Reaction-if heat absorbed in the Reaction

Exothermic Reaction- if heat released in the Reaction

∆H gives the heat involved in the Reaction.

∆H>0; reaction is endothermic.