1.State the relationship between Celsius, Fahrenheit, and Kelvin temperature scales.
2.Define coefficients of linear, superficial, and cubical expansion ($\alpha, \beta, \gamma$).
3.State Newton's Law of Cooling.
4.State Stefan-Boltzmann Law for blackbody radiation.
5.An iron rod of length $50 \text{ cm}$ is heated from $20^\circ\text{C}$ to $100^\circ\text{C}$. Find change in length ($\alpha = 1.2 \times 10^{-5} /\text{K}$).
6.Calculate heat required to convert $100 \text{ g}$ of ice at $0^\circ\text{C}$ to steam at $100^\circ\text{C}$ ($L_f = 80 \text{ cal/g}, c=1, L_v = 540 \text{ cal/g}$).
7.A body cools from $80^\circ\text{C}$ to $60^\circ\text{C}$ in $5 \text{ min}$ in surroundings at $20^\circ\text{C}$. Find time to cool from $60^\circ\text{C}$ to $40^\circ\text{C}$.
8.Find thermal current through a copper rod of length $0.5 \text{ m}$ and cross-section $10 \text{ cm}^2$ held between $100^\circ\text{C}$ and $0^\circ\text{C}$ ($K = 400 \text{ W/m}\cdot\text{K}$).
