Question

Which of the following has the correct change in enthalpy and reaction description for the following reaction?
NH3(g) + HCl(g) NH4Cl(s)

Given:
NH3: ∆H= -46.2 kJ
HCl: ∆H= -92.3 kJ
NH4Cl: ∆H= -314.43 kJ

Answer 1

answer choices..

∆H = -176 kJ and the reaction is exothermic.
∆H = -101 kJ and the reaction is endothermic.
∆H = -453 kJ and the reaction is endothermic.
ÄH = -453 kJ and the reaction is exothermic.
∆H = -453 kJ and the reaction is isothermic.