Question

HQ5.39

Homework Answered Due Today, 11:59 PM
Consider the reaction of hydrogen with sulfur to form hydrogen sulfide: 8H₂(g) + S8 (s)-8H₂S(g), which has an enthalpy of
reaction of -20.15 kJ/mol. If 101 g of sulfur are reacted with an excess of hydrogen, how much heat is produced (kJ)?

Answer 1

Answer: 63.598 kJ

Explanation: 1. calculate No.of mols

101 g/32 g/mol = 3.15625 mol

2. from the reaction 1 mol of sulfur give 20.15kJ

so 3.15625 mol will give : 3.15625*20.15 = 63.598 kJ