Heat and Thermodynamics

Problems

1. Calculate the variation of latent heat of fusion of ice with temperature from the following data:

   Specific heat of water at 0°C = 1

   Specific heat of ice at 0°C = 0.505

   

    

   Ans.

2. At normal pressure, melting point of mercury is −39°C. Its density in solid state is 14.19 gm/cc and at liquid state 13.59 gm/cc and the latent heat of fusion is 2.33 cal/gm. Calculate the melting point of mercury at 1,000 atm.

    

   Ans. 241.6 K

3. The excess pressure inside a pressure cooker is maintained by a mass of 130 gm placed on the vapour exit tube having cross ...