Question

Calculate AH° for the process Hg2C12(5) → 2Hg(0) + Cl2(8) from the following information Hg(1) + Cl2(8) HgCl2(5) Hg() + HgCl2(5) - H82Cl2(5) AHⓇ - 153.8W/mol AH° - 414.2 /mol Himol Enter an integer or decimal number, with exactly 4 significant figures (more..)

Answer 1

To Ansh (568.0 kJ/mol 7 Discussion on significant figures Ex: 167.85 needs to be written in 4 significent figures 167.85 has s significant figures. sth one will be used to round off. 167.85 > 167.9 Hence, & significant figures of 167.85 is 167.9 Hg (1) + Hq CQ, Css Hg (l) + Q₂ lg) D4° = 414.2 kJ/mol OH = 153.8 kJ/mol + Hg₂ q (3) - Hg cq (s) - Haza, Cs) — os, DH° = 2119 () + Clocq) oHº - (414.2 + 153.8) kJ/mol 568.0 kJ/mol using Hers low La significant figures 36.0 (s) + $02(g) oH'= 425.2 kJ/mol cols) + Ž O Cg)] SH°: 3x145.4 kg/mol 3. + C0304cs) — 3 rco o(s) Coz O4(s) + 3 Cooks) - 3600(s) + O2 + 36o(s) +{0G) Cozot Cs) — 36065) + 20269) Shºp (425.2 + 436. 2) kifood on, AH = 861.4 kJ/mol L a significant figures 861.4 ko/mol