diketahui entalphi standar h2 o/(9) = -286 kj/mol co2 (9) = -399kj/mol c2 h4 (9) =-52,26 kj/mol

Question

Kimia Diposting : 2017-10-16 Diupdate : 2017-10-27 ngurahadhi

Pertanyaan

diketahui entalphi standar
h2 o/(9) = -286 kj/mol
co2 (9) = -399kj/mol
c2 h4 (9) =-52,26 kj/mol

Answer 1

∆h = ∆hf°co2+∆hf°h2o-∆hf°c2h4
= -399+(-286)-(-52,26)
= -685+52,26
= 632,74