Determine the enthalpy for this reaction: al(oh)3(s)+3hcl(g)→alcl3(s)+3h2o(l) express your answer in kilojoules per mole to one decimal place.

Substance of ΔHf∘ (kJ/mol) are the following:HCl(g) −92.0 Al(OH)3(s) −1277.0 H2O(l) −285.8 AlCl3(s) −705.6 H2O(g) −241.8So..
products - reactants: (all units in kJ) (−705.6) + (3 x −285.8) - (−1277.0) - (3 x −92.0) = - 10.0 kJ/mol Al (OH) 3 or mol AlCl3 

Answerit curves up and levels out.explanationwe assume that the container contains absolutely no ammonia to begin with as it states that "nitrogen gas and hydrogen gas" react to "produce ammonia."at dynamic equilibrium, the product and reactant concentrations are equal.this means that, starting from a concentration of zero, [nh₃] must curve "up" from zero and then level out to a constant concentration.

Answerδh > 0explanationc₆h₆  (s)  → c₆h₆ (l)if you are changing it from a solid to a liquid, you are pretty much melting the solid. this requires heat energy. therefore, the reaction is endothermic (takes in energy); the system enthalpy increases as the reaction proceeds: δh > 0.