Given the reaction at equilibrium: A2 (g) + B2 (g) ↔ 2 AB (g), ΔH = +55.8 kJ If concentration of B2 is decreased, equilibrium will shift:

Can anybody help me?!

answer: enthalpy

explanation:

for a exothermic reaction, the energy is released i.e. the energy of the products is lower than the energy of the reactants.

= enthaply

= energy of products

= energy of reactants

as , thus comes out to be negative. negative value of enthalpy shows that the reaction is exothermic.