Question

Calculate the heat of formation of HCl at 348 K from the following data
2 2 ( ) ( ) ( )
1 1 H g Cl g HCl g
2 2
+ à ƒ ¢ † ’
;
o à ƒ ¯  „H298K
= - 92.3 kJ
The mean heat capacities in the temperature range 298 K and 360 K are:
H2(g): Cp = 28.53 JK-1mol-1
Cl2(g): Cp = 32.26 JK-1mol-1
HCl(g): Cp = 28.49 JK-1mol-1

Answer 1

Heat of formation=$-22,083Cal$