Question

2H2+O2=2H2O

H=-484KJ

Which answer best describes the transfer of heat that occurs when 1.41 mol of H2 reacts with 0.671 mol of O2?

341 kJ released
484 kJ released
341 kJ absorbed
484 kJ absorbed
325 kJ released
325 kJ absorbed

Answer 1

This is a limiting reagent problem Do it just as the other LR problem except this is with heat involved. O2 is the limiting reagent. Since the sign of dH is - that means heat is released.

Answer 2

¡A¡C

Answer 3

325 kJ released