Question

The bond energy of H2
, X2
and HX are 434 kJ/mol, 242 kJ/mol, and 432 kJ/mol.
Electronegativity of ‘X’ in the Pauling scale is

Answer 1

Answer:

2.4 or 1.8

Explanation:

from pauling formula

see attachment

KINDLY MARK ME AS BRAINLIEST

FOLLOW ME

BYE

Answer 2

The electro-negativity of X in the Pauling scale is 2.4 or 1.8 respectively.

Explanation:

We are given that:

• Bond energy of H2 = 434 KJ/mol
• Bond energy of X2 = 242 KJ/mol
• Bond energy of HX = 432 KJ/mol

We know that electronegativity of H = 2.1

Now

| Xx - XH | = √ 432 - (434 + 242) / 2

| Xx - XH | = √ 0.432 - 0.338

| Xx - 2.1 | =  √ 0.094

X = ± 0.3 , + 2.1

X = 2.4 , 1.8

Hence the electro-negativity of X in the Pauling scale is 2.4 or 1.8 respectively.