What is vapourization ? What is normal boiling point ?
The temperature at which the vapour pressure of a liquid becomes equals to the external (atmospheric) pressure is its
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 that temperature $T$ versus time $t$ plot for the two materials. We denote the specific heat of materials in the liquid (solid) states to be $C_{L 1}$ $\left(C_{S 1}\right)$ and $C_{L 2}\left(C_{S 2}\right)$, respectively. Choose the correct option given below.
On a hot day, placing a cup full of ice water on the table heats up as cup of hot tea on the same table cools down. write the reason.
If liquefied oxygen at $1$ atmospheric pressure is heated from $50\, K$ to $300\, K$ by supplying heat at constant rate. The graph of temperature vs time will be
The variation of density of water with temperature is represented by the