In Physical Chemistry (States of Matter), the concept of Critical Temperature (Tc) is fundamental to understanding how gases are liquefied.
Definition: Temperature above which a gas cannot be liquefied by pressure alone.
Symbol: Tc.
CO₂ Critical Temp: 30.98 °C.
Importance: Determines how easily a gas can be stored as a liquid.
The Critical Temperature (Tc) of a gas is the temperature above which the gas cannot be liquefied, no matter how much pressure is applied.
Every gas has a specific critical temperature. If the gas is hotter than this temperature, its kinetic energy is so high that intermolecular forces cannot pull the molecules together into a liquid, even if you compress them infinitely.
Critical temperature is the maximum temperature at which a substance can exist as a liquid. Above this temperature, a gas cannot be liquefied regardless of how much pressure is applied.
No. The critical temperature of CO₂ is 30.98 °C. At 35 °C, it is above its critical temperature, so it cannot be liquefied by pressure.
Reaction: Barium Chloride + Aluminium Sulphate
Learn the balanced chemical equation for the reaction between Barium chloride and Aluminium sulphate. Understand the double displacement precipitation reaction.
Barium Sulphate Formula and Properties
Learn the chemical formula of Barium Sulphate (BaSO4). Discover how it is formed through a precipitation reaction, its insolubility in water, and its uses.
What is the Formula of Barium Sulphate?
Learn the chemical formula for Barium Sulphate (BaSO4). Understand its valency cross-over, why it forms a famous white precipitate, and its medical uses.
What is the Full Form of BHC?
Learn the full form of BHC in chemistry. Understand the structure, uses, and environmental hazards of Benzene Hexachloride (Gammaxene).
Bleaching Powder Formula, Chemical Name and Composition
Bleaching powder formula is CaOCl₂ or Ca(OCl)Cl. Chemical name: calcium hypochlorite-calcium chloride or calcium chlorohypochlorite. Full explanation with FAQs.
Turn this guide into revision flashcards, a practice exam, or an AI-generated podcast — free, no signup required.