Answer : The value of [tex]\Delta H[/tex] is, -22,000 cal.
Explanation :
The given balanced chemical reaction is,
[tex]N_2(g)+3H_2(g)\rightarrow 2NH_3(g)+22,000cal[/tex]
This reaction is an exothermic reaction because in this reaction the energy is released.
And as we know that when the energy is released (gives off) then the enthalpy of the reaction is negative and when the energy is absorbed (added) then the enthalpy of the reaction is positive.
As per question, the energy is released that means the enthalpy of the reaction will be negative.
Hence, the value of [tex]\Delta H[/tex] is, -22,000 cal.
