01 Introduction to Chemistry
02 Matter and the Atomic Structure
03 The Mole Concept, Chemical Formula and Equation
04 The Periodic Table of Elements
05 Chemical Bond
06 Acids, Bases and Salts
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2.1 6 Melting Point, Boiling Point and the State of Matter

Melting Point, Boiling Point and State of Matter

  1. The physical state of a substance at a certain temperature and pressure depends on the values of its melting and boiling points.
  2. A substance is in solid state if it exists at a temperature below its melting point.
  3. A substance is in liquid state if it exists at a temperature above its melting point but below its boiling point.
  4. A substance is in gaseous state if it exists at a temperature above its boiling point.