12 Questions
What is true about the half-time of a second-order reaction?
It is independent of the initial concentration of the reactant
What is the unit of the rate constant k in a first-order reaction?
s-1
Which property is used when calculating the enthalpy change of a reaction using Hess's law?
Enthalpy
What is the term for the study of the heat associated with chemical reactions and physical processes?
Thermochemistry
What type of system can exchange energy with its surroundings freely?
Open System
What is the term for a process that gives out heat and transfers heat energy to the surroundings?
Exothermic
What is the correct formula for the acid dissociation constant Ka for the reaction HCl + H2O → H3O+ + Cl-?
[H3O+][Cl-]/[HCl]
What is the relationship between Ka and Kb values and acid and base strength?
The higher the Ka and Kb values, the stronger the acid or base.
What is a titration curve?
A graph of volume vs. pH for a titration.
Which of the following acids is a strong acid?
HNO3
What is the acid-dissociation constant Ka for the pyridinium ion, C5H5NH+, given the base-dissociation constant Kb for pyridine, C5H5N, is 1.4 × 10-9?
7.1 × 10-4
What types of elements typically form ionic bonds?
Metal to Nonmetal
Test your knowledge on chemical kinetics with this quiz focusing on the half-time of second and first-order reactions. Choose the correct answers and see how you score! This quiz is worth 17 points out of 100.
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