If enthalpy of atomisation for (Br\_{2(I)}) is (x ,kJ/mol) a... | Chemistry | SolveeIt | Solveeit

Today, August 18

Question

If enthalpy of atomisation for $Br_{2(I)}$ is $x \,kJ/mol$ and bond enthalpy for $Br_2$ is $y\, kj/mol$ , the relation between them :

A

is $x < y$

B

does not exist

C

is $x > y$

D

is $x = y$

Answer

is $x > y$

Explanation

Solution

Enthalpy of atomisation of $Br_{2}\left(l\right)$ $\Delta H_{atoms}=\Delta H_{vap}+\Delta H_{BE}$ $x=\Delta H_{vap}+y$ $so,\, x>\, y$