Question

calculate the heat formation of methanol if the heat of combustion of carbon, hydrogen and methanol are -393KJ, -286.16KJ and -726KJ/mol​

Answer 1

Answer:

Calculate the enthalpy of formation (in kcal/mol) of HI(g) from the following data:

H

2

(g)+Cl

2

(g)→2HCl(g);ΔH=−44.20 kcal

HCl(g)+aq→HCl(aq);ΔH=−17.31 kcal

HI(g)+aq→HCl(aq);ΔH=−19.21 kcal

KOH(aq)+HCl(aq)→KCl(aq);ΔH=−13.74 kcal

KOH(aq)+HI(aq)→KI(aq);ΔH=−13.67 kcal

Cl

2

(g)+2KI(aq)→2KCl(aq)+I

2

(s);ΔH=−52.42 kcal