Liquid State

IMPORTANT

Liquid State: Overview

This topic covers concepts, such as Coefficient of Viscosity, Surface Tension, Surface Energy, Aqueous Tension, Viscosity, Laminar Flow, Factors Affecting Surface Tension, Viscous Force, Normal Boiling Point, Equilibrium Vapour Pressure, etc.

Important Questions on Liquid State

EASY
IMPORTANT

In a closed system, there is an equilibrium of water molecules between liquid and the gaseous phase. The vapour pressure will be _____. 

EASY
IMPORTANT

Define equilibrium vapour pressure.

EASY
IMPORTANT

Write the relation between the surface tention and the surface energy.

EASY
IMPORTANT

Define surface energy of the liquid.

EASY
IMPORTANT

The dimensional formula of viscous force is MLT-1.

EASY
IMPORTANT

The mathematical expression for viscous force is:

EASY
IMPORTANT

Surface tension does not vary with size of the surface.

EASY
IMPORTANT

Surface tension does not vary with _____

A. size of the surface  B. concentration  C. Cohesive force (Fill the correct answer as A or B or C)

MEDIUM
IMPORTANT

Pick out the wrong statement(s).
(i) Vapour pressure of a liquid is the measure of the strength of intermolecular attractive forces.
(ii) Surface tension of a liquid acts perpendicular to the surface of the liquid.
(iii) Vapour pressure of all liquids is same at their freezing points.
(iv) Liquids with stronger intermolecular attractive forces are more viscous than those with weaker intermolecular force.

EASY
IMPORTANT

Which of the following has the highest surface tension? 

EASY
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Surface tension does not vary with

EASY
IMPORTANT

The fluid that doesn't follow Newton's law of viscosity is called as_____.

MEDIUM
IMPORTANT

Which of the following statements regarding a liquid is not correct?

EASY
IMPORTANT

Which of the following is a correct statement?

HARD
IMPORTANT

Aqueous tension is dependent on

HARD
IMPORTANT

Aqueous tension is dependent on pressure.

MEDIUM
IMPORTANT

The standard boiling point of water is _____°C.

MEDIUM
IMPORTANT

Why standard boiling point is slightly lower than the normal boiling point ?

HARD
IMPORTANT

The flow of liquid in which there is no regular gradation of velocity in passing from one layer to the next is called laminar flow.

HARD
IMPORTANT

Why ethylene glycol, have a much lower equilibrium vapor pressure than octane?