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One beaker contains pure water and the other beaker contains pure methanol at the same temperature. Which liquid has the higher surface tension and viscosity?
A. Water has the higher surface tension.
B. Methanol has the higher surface tension.
C. Surface tension cannot be predicted.
D. Water has the higher viscosity.
E. Methanol has the higher viscosity.
F. Viscosity cannot be predicted.

Respuesta :

Answer:

Water has both the higher surface tension and viscosity

Explanation:

Water has stronger intermolecular forces

pstnonsonjoku

Water has a higher viscosity and surface tension than methanol.

Water has a high melting and boiling point irrespective of its low relative molecular mass because of strong intermolecular hydrogen bonding in the liquid.

This strong intermolecular hydrogen bonding also accounts for its high viscosity and surface tension. Surface tension is a force acting along the surface of a liquid that makes it behave like a stretched elastic skin.

Methanol has a lesser magnitude of intermolecular hydrogen bonding compared to water hence it has less surface tension and viscosity compared to water.

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