Question

Nitrogen and hydrogen react to form ammonia according to the following equation: N2(g)+3H2(g)⇌2NH3(g) Consider the following representations of the initial mixture of reactants and the resulting mixture after the reaction has been allowed to react for some time: If the volume is kept constant, and nothing is added to the reaction mixture, what happens to the total pressure during the course of the reaction?the pressure increasesthe pressure does not changethe pressure decreases

Answer 1

The pressure increases.

Step-by-step explanation:

According to Avogadro's principle, equal volume of gases contains the same number of moles. From the reaction equation, there is a decrease in the total number of moles from reactant to product indicating a decrease in volume (as per Avogadro) and an increase in pressure according to Boyle's Law-Volume is inversely proportional to pressure.