The saturation vapour pressure of water at $100^{\circ}C$ is ........ $mm$ of mercury.

What is called absolute zero temperature?

The triple point of water is

The graph $AB$ shown in the figure is a plot of the temperature of a body in degree Celsius $(C)$ versus degree Fahrenheit $(F)$. Then:

On a new scale of temperature (which is linear) called the $W$ scale,the freezing and boiling points of water are $39\,^{\circ}W$ and $239\,^{\circ}W$ respectively. What will be the temperature on the new scale,corresponding to a temperature of $39\,^{\circ}C$ on the Celsius scale?

Write the relation between Celsius and Fahrenheit scales with a graph.