A vessel contains a small amount of water at `0^(@)C`. If the air in the vessel is rapidly pumped out, it causes freezing of the water. Why? What percentage of the water in the container can be frozen by this method? Latent heat of vaporization and fusion are `L_(V) = 540 cal g^(-1)` and `L_(f) = 80 cal g^(-1)` respectively.

A closely thermally insulated vessel contains 100 g of water at 0^@C . If the air from this vessel is rapidly pumped out, intensive evaporation will produce cooling and as a result of this, water freeze. How much ice will be formed by this method? If latent heat of fusion is 80 cal//g and of evaporation 560 cal//g . [ Hint If m gram ice is formed, mL_(f)=(100-m)l_(v) ]

A closely thermally insulated vessel contains 100 g of water at 0^@C . If the air from this vessel is rapidly pumped out, intensive evaporation will produce cooling and as a result of this, water freeze. How much ice will be formed by this method? If latent heat of fusion is 80 cal//g and of evaporation 560 cal//g . [ Hint If m gram ice is formed, mL_(f)=(100-m)l_(v) ]

A vessel containing 100 g ice at 0^(@)C is suspended in a room where temperature is 35^(@)C . It was found that the entire ice melted in 10 hour. Now the same vessel containing 100 g of water at 0^(@)C is suspended in the same room. How much time will it take for the temperature of water to rise to 0.5^(@)C . Neglect the heat capacity of the vessel. Specific heat of water and specific latent heat of fusion of ice are 1 cal g^(-1) .^(@)C^(-1) and 80 cal g^(-1) respectively.

Find the amount of heat required to convert 10g of water at 100^(@)C into steam. (Spefic latent heat of vaporization of water = 540 cal //g )

A non conducting vessel thermally insulated from its surroundings, contains 100 g of water 0^(@)C . The vessel is connected to a vacuum pump to pump to water vapour. As a result of this, some water is frozen. If the removal of water vapour is continued, what is the maximum amount of water that can be frozen in this manner? Laten heat of vaporisation of water =22.5xx10^(5)Jkg^(-1) and latent heat of fusion of ice =3.36xx10^(5)Jkg^(-1)

If the boiling point of an aqueous solution containing a non-volatile solute is 100.1^(@)C . What is its freezing point? Given latent heat of fusion and vapourization of water 80 cal g^(-1) and 540 cal g^(-1) , respectively.

If the boiling point of an aqueous solution containing a non-volatile solute is 100.15^(@)C . What is its freezing point? Given latent heat of fusion and vapourization of water 80 cal g^(-1) and 540 cal g^(-1) , respectively.

If the boiling point of an aqueous solution containing a non-volatile solute is 100.15^(@)C . What is its freezing point? Given latent heat of fusion and vapourization of water 80 cal g^(-1) and 540 cal g^(-1) , respectively.

A thermally isolated vessel contains 100g of water at 0^(@)C . When air above the water is pumped out, some of the water freezes and some evaporates at 0^(@)C itself. Calculate the mass of the ice formed such that no water is left in the vessel. Latent heat of vaporization of water at 0^(@)C=2.10xx10^(6)J//kg and latent heat of fusion of ice =3.36xx10^(5)J//kg .

A thermally isolated vessel contains 100g of water at 0^(@)C . When air above the water is pumped out, some of the water freezes and some evaporates at 0^(@)C itself. Calculate the mass of the ice formed such that no water is left in the vessel. Latent heat of vaporization of water at 0^(@)C=2.10xx10^(6)J//kg and latent heat of fusion of ice =3.36xx10^(5)J//kg .