Question

Determine the value for the following reaction. 2HI(g) + 2.4 kcal → H2(g) + l2(g) ΔH =

Answer 1

∆H=+2.4kcal as it is absorbed

Answer 2

Answer: The value of $\Delta H$ for the given reaction is +2.4 kCal.

Explanation:

The given reaction is a type of endothermic reaction because in this reaction energy is getting absorbed by the reactants.

The sign convention for $\Delta H$ for endothermic reaction is positive and that for exothermic reaction is negative.

For the given reaction:

$2HI(g)+2.4kCal\rightarrow H_2(g)+I_2(g)$

As, the energy term is written on the reactant side, so it is absorbed.

Hence, the value of $\Delta H$ for the given reaction is +2.4 kCal.