Question

NAMIN SEC Question 4 of 14 > Use Le Châtelier's principle to predict how the equilibrium for the weak base methylamine responds to the indicated chan CH, NH, (aq) +H,0(1) - CH NH; (aq) + OH(aq) AH n = 103 kJ/mol Produces more reactants No change Produces more products Answer Bank increasing the temperature adding CH NH,BE adding KB adding HB adding KOH

Answer 1

CHANH + H2O = Cunton oun 103 kJ/mol. Increasing Temperature - Since ano is positive, the reaction is endothermic, so increasing temperature increases S keq , so there is forward shirt so more products are formed. ② Adding CH₂ Nu Br - It dissociates into chany and By ions. There is increase in the concentration ou cloning ion which is on the product side- to Balance this, the reaction shists left and more reactants are produced, ③ Adding KBr - No change 10 Adding HBY - It dissociates to form n ions which reacts with the on ions which are on the product side. Hence, there is a decrease in font so the reaction Shilts Teacher's Signature' towards product side and more products are posed formed.

(5) Adding kon_ It dissociates to produce Page No: on cons. Thus there is an increase in Consioni > reaction shifts towards to - the the reactant rea side to so more Reactants are formed PAULI counter this
Le Chatelier principle isa principle stating that if a constraint (such as a change in pressure, temperature, or concentration of a reactant) is applied to a system in equilibrium, the equilibrium will shift so as to tend to counteract the effect of the constraint.