Question

Q1.Heat Of atomization of ozone and
oxygen are 25 units and 30 units
respectively. The heat of ozonisation
of one mole of oxygen is 5x. What
is the x value ?​

Answer 1

Explanation:

Given, Heat of atomization of Ozone is 25 units.

$O_{3} \longrightarrow 3O \: \: \: \Delta H _{1}= 25$

Heat of atomization of Oxygen is 30 units.

$O_{2} \longrightarrow 2O \: \: \: \Delta H _{2} = 30</p><p>$

Ozonisation of oxygen can be represented as,

$\frac{3}{2} O_{2} \longrightarrow O _{3} </p><p>$

So,

$O_{2} +O \: \longrightarrow O _{3}$

Equation (2) - Equation (1)

This gives us, The required reaction

$O_{2} +O \: \longrightarrow o3$

$\sf \: Heat \: of \: Ozonisation = \Delta \: H _{2} - \Delta \: H _{1}$

Therefore, The Heat of Ozonisation is 30 - 25 = 5 units

Given, Heat of Ozonisation is 5x

So, The value of x is 1.