Calculate the average H-S bond enthalpy in H₂S(g)given the standard enthalpies of formation for H₂S(g),H(g),and S(g): -20.1,218,and 223 kJ.mol^-1,respectively.

Question

Quizplus · Accepted Answer

The average H-S bond enthalpy can be calculated using the formula: Average H-S bond enthalpy = [Enthalpy of formation of H₂S(g) - Enthalpy of formation of H(g) - Enthalpy of formation of S(g)] / 2 Substituting the given values: Average H-S bond enthalpy = [(20.1 + 0) - 218 - 223] / 2 = 340 kJ/mol Therefore, the best choice is A.

Calculate the Average H-S Bond Enthalpy in H2S(g)given the Standard

Calculate the Average H-S Bond Enthalpy in H₂S(g)given the Standard