Question

Beyond the critical point of H2O

• A. H2O exists in a state of equilibrium with all phases
• B. Liquid water can no longer exist
• C. Only the solid phase can exist
• D. H2O can no longer exist as a molecule

Hint:

The critical point marks the boundary beyond which the distinction between liquid and gas phases disappears.

Answer 1

The Correct Option is D

Beyond the critical point of H2O, the substance enters a supercritical state, where liquid and gas phases merge and the substance is no longer a typical molecule of H2O. It exists as a superheated fluid without distinct liquid and gas phases. Thus, the correct answer is (d).