How does an increase in reactant concentration affect the rate of reaction? It leads to more frequent collisions, which increase reaction rate.
It leads to less frequent collisions, which increase reaction rate.
It leads to more frequent collisions, which decrease reaction rate.
It leads to less frequent collisions, which decrease reaction rate.

Achemical equilibrium between gaseous reactants and products is shown. n2(g) + 3h2(g) ⇌ 2nh3(g) how will the reaction be affected if the pressure on the system is increased? it will shift toward the reactant side as there is lower pressure on the reactant side. it will shift toward the product side as there is higher pressure on the product side. it will shift toward the reactant side as there are a greater number of moles of gas on the reactant side. it will shift toward the product side as there are a fewer number of moles of gas on the product side.