Advertisements
Advertisements
Question
Differentiate between the following:
Thermal decomposition & thermal dissociation.
Advertisements
Solution
Thermal decomposition and thermal dissociation.
- Thermal decomposition: “A chemical reaction in which a compound decomposes into two new substances by heat.” It is not a reversible reaction.
\[\ce{CaCO3->[\Delta]CaO + CO2}\] - Thermal dissociation: “Is decomposition of a compound into two or more new substances by heat energy.” It is a reversible reaction.
\[\ce{NH4Cl⇌[heat][cool]NH3 + HCl}\]
APPEARS IN
RELATED QUESTIONS
Explain, giving one example for each of the following chemical changes:
Displacement
Decomposition brought about by heat is known as thermal decomposition. What is the difference between thermal dissociation and thermal decomposition?
State the type of reactions for the following represent and balance the ones that are not balanced.
KNO3 + H2SO4 → HNO3 + KHSO4
What is a decomposition reaction?
State which of the substance given below evolve oxygen gas on thermal decomposition.
Zinc nitrate
Give a balanced equation for a direct combination reaction involving:
Two compounds – resulting in the formation of a weak acid
Give a balanced equation for thermal decomposition of lead nitrate
Name a metallic oxide which on thermal decomposition is reduced to metal.
Give a balanced equation for the following type of reaction:
A soluble salt of lead formed from an insoluble base by double decomposition – neutralization.
Differentiate between the following:
Decomposition reaction and a double decomposition reaction.
