Question

Variation of Density of Liquids and Gases with Temperat
All forms of matter (solids, liquids and gases) expand on her
and contract on cooling. But, in case of solids the expansion
the rise in temperature is so small that it is negligible. So, we
assume that for minor changes in temperature (by 20°C to 4
the density of a solid does not change.
In case of liquids and gases there is large change in volume
the rise in temperature. But, the mass of a gas or a liquid rema
constant, if their volume increases with the rise in temperature
the density of them will decrease.​

Answer 1

Answer:

Variation of Density of Liquids and Gases with Temperat

All forms of matter (solids, liquids and gases) expand on her

and contract on cooling. But, in case of solids the expansion

the rise in temperature is so small that it is negligible. So, we

assume that for minor changes in temperature (by 20°C to 4

the density of a solid does not change.

In case of liquids and gases there is large change in volume

the rise in temperature. But, the mass of a gas or a liquid rema

constant, if their volume increases with the rise in temperature

the density of them will decrease.

Answer 2

Answer:

Explanation:

The physical properties of a substance depends upon its physical state. Water vapor, liquid water and ice all have the same chemical properties, but their physical properties are considerably different. In general covalent bonds determine: molecular shape, bond energies, chemical properties, while intermolecular forces (non-covalent bonds) influence the physical properties of liquids and solids. The kinetic molecular theory of gases gives a reasonably accurate description of the behavior of gases. A similar model can be applied to liquids, but it must take into account the nonzero volumes of particles and the presence of strong intermolecular attractive forces.