Extra credit problems Indicate if the following statement is True (T) or false (
ID: 556574 • Letter: E
Question
Extra credit problems Indicate if the following statement is True (T) or false (F).(r 1The equilibrium constant, K' for the reverse reaction is the negative of Ke for the for wand reaction 2 Lewis 3Seits derived from a strong acid and a weak base such as NtCi dissaives in waer and tesi #Statement -- acid definition are: A base is an electron pair acceptor and an acid are an electron pair do becomes acidic 4The rate of a bimolecular reaction is affected by concentrations of reactants, presence f 's catalye not by termperature. 5 Concentration of a pure solid and a liquid can be omnited from the equiltrium equation st concentrations ratio of these equai to 1 6 The equilibrium constant is temperature sensitive 7 The reaction rates will be affected by the magnitude of the activation energy of a reaction 8 The rate determining step is the fastest step of muitistep reections The overal reaction order for an elementary reaction always equais its moleculanity However, the overall reaction rate for multistep reactions can only be determined based on experimental data 10 Addition of a catalyst to a reaction mixture increases rate constant but it does not alter the composition of an equilibrium mixtureExplanation / Answer
1)False, Equilibrium constant for reverse reaction is the reciprocal if equilibrium constant for forward reaction
2)False, In lewis acid base is an electron donar while acid is electron acceptor.
3)True, NH4Cl dissociate in water and form NH4+ and Cl- ion in which Cl- is spectator ion which NH4+ dissociate further and release H+ ions.
4) True, since rate equationis given by -ra= KCa^n where k is rate constant Ca is concentration and n is order of reaction
5)True, Concentration of pure solid can be neglected in equilibrium constant. As they are constant throughout the reaction.
6)True , As equilibrium constant is also expressed in the form of Gibbs energyK=e^(-dG/RT)
7)True, Rate of reaction affect the magnitude of activation energy by lowering activation energy.
8)True, RDS is an step of formation of transition state which last for few milliseconds.
9)False, overall order of reaction is not equal to molecularity.
It can be determined only by experiments.
10)True, addition of catalyst increases the rate constant by increasing temperature of catalyst but unaffected once equilibrium is achieved
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