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.
What is latent heat ? Explain with example.
A given mass $m$ of a hypothetical solid is supplied with heat continuously at a constant rate and the graph shown in the adjacent figure is plotted. If $L_f$ and $L_v$ are latent heats of fusion and latent heats of vaporization and $S_l$ and $S_s$ are specific heats of liquid and solid respectively. It can be concluded that
$2\;gm$ of steam condenses when passed through $40gm$ of water initially at $25^oC.$ The condensation of steam raises the temperature of water to $54.3^oC.$ What is the latent heat of steam ........... $cal/g$
What is vapourization ? What is normal boiling point ?
A liquid boils when its vapour pressure equals