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9 solutions

Collision Theory

Q. Collision theory assumes that the rate of a reaction depends on A.the change in free energy between the reactants and the products. B.the change in energy between the products and the reactants. C.the energy of collisions. D.the orientation of colliding molecules. E.the energy of collisions and the orientation of colliding molecules

Solved • Feb 16, 2020

Collision Theory

Q. Metals often form several cations with different charges. Cerium, for example, forms Ce^3+ and Ce^4+ ions, and thallium forms Tl^+ and Tl^3+ ions. Cerium and thallium ions react as follows: 2Ce^4+ (aq) + Tl^+ (aq) → 2Ce^3+(aq) + Tl^3+ (aq) . This reaction is very slow and is thought to occur in a single elementary step. The reaction is catalyzed by the addition of Mn^2+ (aq) according to the following mechanism: Ce^4+ (aq) + Mn^2+(aq) → Ce^3+(aq) + Mn^3+(aq) Ce^4+ (aq) + Mn^3+(aq) → Ce^3+(aq) + Mn^4+(aq) Mn^4+(aq) + Tl^+(aq) → Mn^2+(aq) + Tl^3+(aq) If the uncatalyzed reaction occurs in a single elementary step, why is it a slow reaction? Check all that apply.

Solved • Feb 6, 2020

Collision Theory

Q. Which of the following would lead to an increased rate of reaction for gaseous reactants? a) increasing in the volume of the reaction container b) decreasing the concentration of the reactants c) increasing the temperature of the reactants. d) decreasing the partial pressures of the reactants

Solved • Feb 10, 2020

Collision Theory

Q. For a chemical reaction to occur, all of the following must happen except

Solved • Oct 28, 2019

Collision Theory

Q. For the following reaction, how many unique collisions between A and B are possible if 4 particles of A(g) and 6 particles of B(g) are present in the vessel? A(g) + B(g) → AB(g)

Solved • Oct 10, 2019

Collision Theory

Q. Consider the following hypothetical molecular collisions and predict which of the following will form potential products, given the values for the energy of activation, Ea, and enthalpy of the reaction, ΔH, in combination with the molecular orientation. Check all that apply.

Solved • Sep 26, 2019