# Indicate whether each of the ff. reactions is exothermic or endothermic? a) Br2(l)+Cl2(g)→2 BrCl(g) Δ H=29.4kJ

Aug 5, 2017

Clearly it is $\text{endothermic}$.

#### Explanation:

As written, you have got......

$B {r}_{2} \left(l\right) + C {l}_{2} \left(g\right) + \Delta \rightarrow 2 B r C l \left(g\right)$

Energy is required to break the bonds, which is not equalized by the formation of $B r - C l$ bonds......

Such products are often termed $\text{interhalogens}$.