Chittaranjan Dasgupta and Asok Kumar Das Solutions for Chapter: Calorimetry and Change of State, Exercise 1: EXERCISE

$122320 \mathrm{cal}$ of heat is supplied to $100 \mathrm{g}$ of ice at $0°\mathrm{C}$. If the latent heat of fusion of ice is $80 \mathrm{cal}/\mathrm{g}$ and latent heat of vaporization of water is $540 \mathrm{cal}/\mathrm{g}$, the final amount of water thus obtained and its temperature respectively are

Three bodies of the same material of masses, $m, 2 m$ and $3 m$ are at temperatures $40°\mathrm{C}, 50°\mathrm{C}$ and $60°\mathrm{C}$, if the bodies are brought in thermal contact, the final temperature will be

A block of ice at $-10°\mathrm{C}$ is slowly heated and converted to steam at $100°\mathrm{C}$. Which of the following curves in Fig.18.11 represents the phenomenon qualitatively?

When ice melts, it contracts in volume. When the pressure on a lump of ice is increased, its melting point

In a closed vessel, there is some water at $27°\mathrm{C}$ over which air saturated with water vapour exists. The total pressure in the vessel at that temperature is $76 \mathrm{cm}$ of $\mathrm{Hg}$. $\mathrm{S}.\mathrm{V}.\mathrm{P}$, vapour pressure at ${27}^{\circ }\mathrm{C}=2.8 \mathrm{cm}$. Pressure of air alone is

It is difficult to cook rice in an open vessel by boiling it at high attitudes because of.

A jar contains a gas and a few drops of water at $TK.$ The pressure in the jar is $0.830 \mathrm{m}$ of mercury. The temperature of the jar is reduced by $1\%$. The saturated vapour pressure of water at the two temperatures are $30\times {10}^{-3} \mathrm{m}$ and  $25\times {10}^{-3} \mathrm{m}$ of $\mathrm{Hg}$. The new pressure in the jar is

Three bodies of the same material and having masses $\mathrm{m},\mathrm{m}$ and $3\mathrm{m}$ temperatures $40°\mathrm{C},50°\mathrm{C}$ and $60°\mathrm{C}$ respectively. If the bodies are brought in thermal contact, the final temperature will be