MENU
Educational Resources
Exam Papers
Form 1 Videos
Form 2 Videos
Form 3 Videos
Form 4 Videos
Grade 4 Videos
Grade 5 Videos
Grade 6 Videos
Grade 7 Videos
Class 8 Videos
Form 1 Exams
Form 2 Exams
Form 3 Exams
Form 4 Exams
KCSE Videos
Class 8 Exams
Grade 5 Exams
Grade 4 Exams
Grade 3 Exams
Grade 2 Exams
Grade 1 Exams
Online Tests
Online Tuition
Sign In
Join
Get access to thousands of educational resources
Get premium membership
and access revision papers with marking schemes, video lessons and live classes.
OR
Processing. Please wait.
Form 4 Chemistry: Energy changes in chemical and physical processes lessons
Energy level diagrams, thermochemical cycles and Hess’s law(The law of constant heat summation)
(14m 31s)
1478 Views
SHARE
|
« Previous
Next »
1.
Introduction: meaning of specific heat capacity,heat content and types of heat changes in chemical reactions
2.
Meaning of endothermic reactions with examples
3.
Meaning of exothermic reactions with examples
4.
Meaning of an activation energy in a chemical reaction
5.
Determination or measurement of Enthalpy (heat) changes.
6.
Heat of neutralization and neutralization reactions involving weak acids or weak alkalis
7.
Experiment to determine the heat of neutralization of hydrochloric acid by sodium hydroxide.
8.
Meaning of Enthalpy of solution,Molar enthalpy of solution,Lattice energy,Hydration (solvation)energy
9.
Experiment: To measure the molar enthalpy change for the dissolution (enthalpy of solution) for various compounds.
10.
Meaning of heat of displacement and Experiment: To determine the molar enthalpy change in the reaction between #Cu^(2+)# ions and zinc or iron
11.
Standard conditions for measuring enthalpy changes.
12.
Energy level diagrams, thermochemical cycles and Hess’s law(The law of constant heat summation)
13.
Define standard heat of combustion of a substance.
14.
Heat of formation and bond energies
15.
Meaning of Molar heat of fusion, ?Hf and Molar heat of vaporization, ?Hvap
16.
Meaning of fuels,heating value,causes of fuel pollution and factors to consider when choosing a fuel.
×
Share Content Via:
Facebook
Twitter
WhatsApp
Close
Get premium membership