Dry ice is
Ice cube
Sodium chloride
Liquid nitrogen
Solid carbon dioxide
What are vapourization and boiling point ? Explain the process of boiling of water.
Two different liquids of same mass are kept in two identical vessels, which are placed in a freezer that extracts heat from them at the same rate causing each liquid to transform into a solid. The schematic figure below shows the temperature $T$ versus time $t$ plot for the two materials. We denote the specific heat in the liquid states to be $C_{L 1}$ and $C_{L 2}$ for materials 1 and 2, respectively and latent heats of fusion $U_1$ and $U_2$, respectively. Choose the correct option.
The temperature at which the vapour pressure of a liquid becomes equals to the external (atmospheric) pressure is its
What is sublimation ? Give name of sublimation substances.
What is called change of state of matter ?