N2(g) + 3 H2(g) ⇌ 2 NH3(g) + Energy
For the reaction of nitrogen gas and hydrogen gas to make methane, what stresses would shift the equilibrium to the left toward the reactants?

The answer to your question is below

Explanation:

Reaction

           N₂ + 3H₂   ⇔   2 NH₃ + energy

a) The concentration of NH₃, if the concentration of NH₃ increases, the reaction will move to the left.

b) Diminishing the temperature, no more energy will be released and the reaction will move to the reactants.

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.

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