Effects of Heat: Thermal Expansion

The volume thermal expansion coefficient of an ideal gas at constant pressure is

Length of a wire at room temperature is $4.55 \mathrm{m}$. When the temperature increases upto $100 \mathrm{℃}$, then its length becomes $4.57 \mathrm{m}$. The coefficient of linear expansion $\left(\alpha \right)$ of the given wire is

Ratio of linear, area and volume expansion in solids is

If there is an increase in the _____ of a solid body due to heating, then the expansion is called cubical expansion.

Soft drink bottles are not filled completely to avoid same from bursting.

Gap left between the ends of two railway lines in a railway track is due to compression of solids.

The density of water is maximum at _____ $\mathrm{K}$ and is less on either side of this temperature.

What is the relation between the coefficient of linear expansion and the coefficient of superficial expansion?

The formula for the coefficient of volume expansion is

The formula for the coefficient of superficial expansion is

The formula for the coefficient of linear expansion is

Greater the volume of the solid _____ (greater/ smaller) is the amount of expansion in the solid.

Solids expand _____ (least/ greatest) as compared to liquids and gases.

When solids are heated, they expand in all directions.

Which of the following states of matter expands the least on heating?

The volume of a metal sphere increases by $0.24 \%$ when its temperature is raised by $40 °\mathrm{C}$ . The coefficient of linear expansion of the metal is

The moment of inertia of a rod about its perpendicular bisector is $I$. When the temperature of the rod is increased by $\mathrm{\Delta }T$, the increase in the moment of inertia of the rod about the same axis is (Here, $\alpha$ is the coefficient of linear expansion of the rod)

At $50 \mathrm{℃}$, a brass rod has a length $50 \mathrm{cm}$ and a diameter $2 \mathrm{mm}$. It is joined to a steel rod of the same length and diameter at the same temperature. The change in the length of the composite rod when it is heated to $250 \mathrm{℃}$ is (Coefficient of linear expansion of brass $=2.0\times {10}^{-5} {\mathrm{℃}}^{-1}$, Coefficient of linear expansion of steel $=1.2\times {10}^{-5} {\mathrm{℃}}^{-1}$ )

Length of a wire at room temperature is $4.55 \mathrm{m}$. When the temperature increases upto $100 \mathrm{℃}$, then its length becomes $4.57 \mathrm{m}$. The coefficient of linear expansion $\left(\alpha \right)$ of the given wire is

If the volume of a block metal changes by$0.12\%$, when it is heated through $20 \mathrm{℃}$, then the coefficient of linear expansion is