Question

Consider the following statements:

Which of the the statements are true?

• A. Only $1$
• B. Only $2$
• C. Both $1$ and $2$
• D. Neither $1$ nor $2$

Answer 1

The correct option is B Only $2$

For a given rise in temperature, a liquid will have more expansion than a solid and a gaseous substance has the highest expansion when compared with the other two. The coefficient of cubical expansion of liquid is independent of temperature whereas its value for gases depends on the temperature of gases.

When a liquid is heated, it is done by keeping the liquid in some container and supplying heat energy to the liquid through the container. The thermal energy supplied will be partly used in expanding the container and partly used in expanding the liquid. Thus, what we observe may not be the actual or real expansion of the liquid. In fact, the real expansion of a liquid is always greater than the apparent expansion of the liquid.