Chapter 17- Energy Changes
0.0(0)
Studied by 1 person
View linked note
Learn
Practice Test
Spaced Repetition
Match
FlashcardsCard Sorting
1/14
Study Analytics
Name | Mastery | Learn | Test | Matching | Spaced |
|---|
No study sessions yet.
15 Terms
1
New cards
enthalpy change
The ________ is negative in exothermic reactions since heat is lost to the surroundings, while in endothermic reactions, it is positive as heat is gained.
2
New cards
Fuels
Substances burned in air to produce energy in a process called combustion.
3
New cards
Carbon monoxide
________ and water are the products of incomplete combustion.
4
New cards
energy
The ________ required to start the reaction is called the activation ________ (Ea)
5
New cards
Fuel cells
Chemical cells where reactants are continuously supplied to produce electricity directly.
6
New cards
Heat enthalpy change
The amount of heat energy involved in the reaction.
7
New cards
Law of conservation
The law stating that energy can not be created or destroyed, but just changed from one form to another in chemical or physical processes.
8
New cards
Examples of exothermic reactions
combustion, corrosion, neutralisation, respiration
9
New cards
Examples of endothermic reactions
photosynthesis, decomposition,
10
New cards
Exothermic reaction
A chemical reaction accompanied by the evolution of heat.
11
New cards
Endothermic reaction
A chemical reaction accompanied by the absorption of heat.
12
New cards
Activation energy
The energy required to start a reaction.
13
New cards
Fuel Cells
Chemical cells where reactants are continuously supplied to produce electricity directly.
14
New cards
Complete combustion
Combustion that takes place in the presence of a sufficient amount of oxygen.
15
New cards
Incomplete combustion
Combustion that takes place when there is an insufficient amount of oxygen supply.
Flashcards (70)