Liquid Properties: Volume and Shape
Liquids are a state of matter characterized by specific physical properties:
- Definite Volume: Liquids occupy a fixed amount of space. Their volume remains constant regardless of the container's size or shape.
- No Fixed Shape: Liquids do not have a rigid structure. They flow and conform to the shape of whatever container they are in.
Analyzing the provided observations helps identify the best example:
Observation Evaluation
- Option 1: Air expands to fill the entire container. This describes gases, not liquids. Gases have indefinite volume and indefinite shape.
- Option 2: A solid iron block retains its shape in any container. This describes solids, which have both definite volume and definite shape.
- Option 3: A sponge changes its shape when squeezed. A sponge is a porous solid. While it deforms, this action relates to the compressibility of the solid material, not the inherent properties of a liquid.
- Option 4: Water takes the shape of its container but retains its volume. This observation directly illustrates the key properties of a liquid. Water, a common liquid, adapts its shape to the container while maintaining its specific volume.
Option 4 is the most accurate observation supporting that liquids possess a definite volume but lack a fixed shape.
Important Questions from States of Matter
A liquid is heated up to a certain temperature. Which one of the following situation would correspond to the boiling of the liquid?
Which one among the following oxides has the highest melting point?
Equal volume of all gases, when measured at the same temperature and pressure, contain an equal number of particles. Who proposed the above law?
Match List I with List II and select the correct answer using the code given below the Lists:
Code:List I (Noble gas)
List II (Use)
A. Argon
1. In lights for advertising display
B. Neon
2. Airport landing lights and in light houses
C. Krypton
3. Light in photographer’s flash gun
D. Xenon
4. In tungsten filament to last
Match List-I with List-II and select the correct answer using the code given below the Lists:
List I
(Process)
List II
(Type of change)
A. Heating of camphor
1. Chemical
B. Cooling of water vapor up to room temperature
2. Evaporation
C. Cooking an egg
3. Condensation
D. Formation of water vapor at room temperature.
4. Sublimation
