Calculate δh∘ in kilojoules for the reaction of acetylene (c2h2) (δh∘f=227.4kj/mol) with o2 to yield carbon dioxide (co2) (δh∘f=−393.5 kj/mol) and h2o(g) (δh∘f=−241.8kj/mol), a reaction which is supplied by the industrial gases industry for oxyacetylene gas welding and cutting due to the high temperature of the flame.

16. in a reaction that has reached equilibrium, a. the forward and reverse reactions are occurring at the same rate. b. the reactants and products are in equal concentrations. c. the forward reaction has gone further than the reverse reaction. d. there are equal numbers of atoms on both sides of the equation. e. a, b, and d are correct.