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NEETChemistryStates of Matter

What does the horizontal portion of the isotherm at the critical point represent?

Options

  1. AThe melting point of carbon dioxide.
  2. BThe boiling point of carbon dioxide.
  3. CThe coexistence of gaseous and liquid carbon dioxide.
  4. DThe sublimation of carbon dioxide.

Correct answer

C. The coexistence of gaseous and liquid carbon dioxide.

Step-by-step solution

The horizontal portion of the isotherm at the critical point represents the coexistence of gaseous and liquid carbon dioxide.

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