Tamil Nadu Board Solutions for Chapter: Thermal Physics, Exercise 1: TEXTBOOK EVALUATION

Distinguish between linear, cubical and superficial expansion.

What is co-efficient of real expansion?

What is co-efficient of apparent expansion?

Find the final temperature of a copper rod. Whose area of cross section changes from $10 {\mathrm{m}}^2$ to $11 {\mathrm{m}}^2$ due to heating. The copper rod is initially kept at $90 \mathrm{K}$. (Coefficient of superficial expansion is $0.0021 {\mathrm{K}}^{-1}$)

Calculate the coefficient of cubical expansion of a zinc bar. Whose volume is increased $0.25 {\mathrm{m}}^3$ from $0.3 {\mathrm{m}}^3$ due to the change in its temperature of $50 \mathrm{K}$.

Derive the ideal gas equation.

Explain the experiment of measuring the real and apparent expansion of a liquid with a neat diagram.

If you keep ice at $0 °\mathrm{C}$ and water at $0 °\mathrm{C}$ in either of your hands, in which hand you will feel more chillness? Why?