you take an ice-cream out if the freezer, kept at - 18°C .outside it is 32°C after one minute the ice cream has warmed to - 8°C what is the temperature if the ice cream after five minutes?

Aluminium container of mass of 10 g contains 200 g of ice at -20^(@)C . Heat is added to the system at the rate of 100 calories per second. What is the temperature of the system after four minutes? Draw a rough sketch showing the variation of the temperature of the system as a function of time . Given: Specific heat of ice = 0.5"cal"g^(-1)(.^(@)C)^(-1) Specific heat of aluminium = 0.2"cal"g^(-1)(.^(@)C)^(-1) Latent heat of fusion of ice = 80"cal"g^(-1)

5g ice at 0^(@)C is mixed with 5g of steam at 100^(@)C . What is the final temperature?

You ate 3 ice cream cups out of 5 kept in the fridge. What percent did you eat ?

100g of ice at 0^(@) is mixed with 100g of water at 100^(@)C . What will be the final temperature of the mixture?

Two beakers, identical in all respects, but made of different materials, are filled with equal amounts of ice at 0^(@) C . Toe ice in one beaker melts in one minute whereas that in the other beaker melts in five minutes. Find the ratio of the thermal conductivities of the material of the two beakers.

104 g of water at 30^@ C is taken in a calorimeter made of copper of mass 42 g. When a certain mass of ice at 0°C is added to it, the final steady temperature of the mixture after the ice has melted, was found to be 10^@ C. Find the mass of ice added. [Specific heat capacity of water = 4.2 J g^(-1)""^@ C^(-1) , Specific latent heat of fusion of ice = 336 J g^(-1) , Specific heat capacity of copper = 0.4 Jg^(-1) ""^@ C^(-1) ].

1 g of ice at 0^@C is mixed with 1 g of steam at 100^@C . After thermal equilibrium is achieved, the temperature of the mixture is

One side of an iron plate one metre square is kept at 100°C and the other side is at 0°C. The thickness of the plate is 1 cm. If all the heat conducted across the plate in one minute is used in melting ice, calculate the amount of ice so melted. Thermal conductivity of iron = 0.162 in C.G.S. unit L.H. of fusion of ice = 80 cal/gm.

In summer, Kamal decides to take a bath at noon. Temperature of the water in overhead tank is 45^(@)C so he decides to mix ince from refrigerator. The temperature of the ice in refrigerator. The temperature of the ice in refrigerator is -10^(@)C . How much ice will be needed to prepare 20 kg of water at 25^(@)C for bath? (Assume no loss to surrounding latent heat of fusion of ice =80cal//gm , specific heat of ice =0.5cal//gm^(@)C

Ice at 0^@C is added to 200 g of water initially at 70^@C in a vacuum flask. When 50 g of ice has been added and has all melted the temperature of the flask and contents is 40^@C . When a further 80 g of ice has been added and has all melted the temperature of the whole becomes 10^@C . Find the latent heat of fusion of ice.