Question

N2 is non-reactive, however, if you can get it to react with H2, it does so in a 1:3 mole ratio (N2:H2) and releases 92.0 kJ of thermal energy. That means which if these statements are true?

A. This reaction is exothermic.
B. This reaction has a negative enthalpy of reaction.
C. All of the above are true.
D. This reaction has a negative enthalpy of reaction.

Answer 1

C. all above is true.

Step-by-step explanation:

Energy releasing reactions are exothermic. Total energy of products (
`N_2 H_2` ) is less than the total energy of reactants (
`H_2 + N_2` ) gives negative enthalpy change.

hint: prefix exo- means "outside, external".