00:02
Considering the decomposition of hydrogen peroxide as followed.
00:08
We have 2 h2o2 gives me 2 h2 plus o2.
00:19
The heat of formation of the substance is defined as enthalpy change that takes place when one mole of compound is formed from its constituent elements in their standard state.
00:34
Reaction of h2o2 formation is shown as followed.
00:41
H2 plus o2 gives me h o oh.
00:51
Mathematically, the heat of formation of h2 is fined using the following equation.
01:01
So on left -hand side will be bond broken.
01:04
On right -hand side, bond formed.
01:16
We have double bond of o as 498 kilojoules per mole.
01:24
We have hydrogen bond breaking is equal to 436 kilojoules.
01:32
The bond form will be 2 of oh gives me 928 kilojoules.
01:41
And the bond of oxygen to oxygen gives me 142 kilojoules...