A calorimeter of negligible heat capacit...

A calorimeter of negligible heat capacity contains `100cc` of water at `40^(@)C` . The water cools to `35^(@)C` in `5` minutes. The water is now replaced by k-oil of equal volume at `40^(@)C` . Find the time taken for the temperature to become `35^(@)C` under similar conditions. Specific heat capacities of water and K-oil are `4200Jkg^(-1)K^(-1)` and `2100Jkg^(-1)K^(-1)` respectively. Density of K-oil `=800kgm^(-3)` .

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A calorimeter of negligible heat capacity contains 100cc of water at 40^(@)C . The water cools to 35^(@)C in 5minutes. The water is now replaced by k-oil of equal volume at 40^(@)C . Find the time taken for the temperature to become 35^(@)C under similar conditions. Specific heat cpacities of water and K-oil are 4200Jkg^(-1)K^(-1) and 2100Jkg^(-1)K^(-1) respectively. Density of K-oil =800kgm^(-3) .

Specific heat capacity of water is ____ J kg^(-1) K^(-1) .

When a calorimeter contains 40g of water at 50^(@)C , then the temperature falls to 45^(@)C in 10 minutes. The same calorimeter contains 100g of water at 50^(@)C , it takes 20 minutes for the temperature to become 45^(@)C . Find the water equivalent of the calorimeter.

Find the increase in mass when 1 kg of water is heated from 0^@C to 100^@C . Specific heat capacity of water = 4200 J kg^(-1) K^(-1) .

10 litres of hot water at 70^@C is mixed with an equal volume of cold water at 20^@ C . Find the resultant temperature of the water. (Specific heat of water = 4200 J//kg -K ).

Find the molar mass and the number of degrees of freedom of a gas if its heat capacities are as c_(v)=650Jkg^(-1)K^(-1) and c_(p)=910J kg^(-1)K .

What would be the final temperature of the mixture when 1kg of ice at -10^(@)C is mixed with 4.4kg of water of 30^(@)C ? (Specific heat capacity of ice =2100Jkg^(-1)K^(-1))

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