A piece of iron of mass `100g` is kept inside a furnace for a long time and then put in a calorimeter of water equivalent `10g` containing `240g` of water at `20^(@)C`. The mixture attains an equilibrium temperature of `60^(@)C`. Find the temperature of the furnace.
Specific heat capacity of iron `= 470J kg^(-1).^(@)C^(-1)`

A piece of iron of mass 100g is kept inside a furnace for a long time put in a calorimeter of water equivalent 10g containing 240g of water at 20^(@)C The mixture attains an equilibrium temperature of 60^(@)C Find the temperature of the furnce specfic beat capacity of iron = 470J kg^(-1)^(@)C^(-1)

A calorimeter of water equivalent 50 g contains 100 g water at 30^(@)C , in each of the situations, select the option(s) that indicate the correct final temperature

An alloy consists 40% copper and 60% nickel. A piece of the alloy of mass 0.1kg is palced in a calorimeter of water equivalent is 10xx10^(-3)kg which contains 90xx10^(-3) kg of water at 10^(@)C . If the final temperature is 20^(@)C , calculate the original temperature of the alloy. (Specific heat capacity of copper =339J kg^(-1)K^(-1) and that of nickel =462J kg^(-1)K^(-1) )

10 g of water at 70^@C is mixed with 5 g of water at 30^@C . Find the temperature of the mixture in equilibrium. Specific heat of water is 1 cal//g-^@C .

A platinum balls of mas 100g is remoived from a furnace and immersed in a copper vessel of mass 100g containing water of mass 390g at 30^(@)C . The temperature of water rises to 40^(@)C . Caltulate the temperature of the furnace. (Given that the specific heat of platinum =168kg^(-1)K^(-1) , specific heat capacity of copper =420Jkg^(-1)K^(-1) and specific heat capacity of water =4200Jkg^(-1)K^(-1))

A calorimeter of water equivalent 100 grams contains 200 grams of water at 10^@ C . A solid of mass 500 grams at 45^@ C is added to the calorimeter. If equilibrium temperature is 25^@ C then, the specific heat of the solid is ("in cal"//g -.^@ C) .

A calorimeter of water equivalent 20 g contains 180 g of water at 25^(@)C . 'm' grams of steam at 100^(@)C is mixed in it till the temperature of the mixture is 31^(@)C . The value of m is close to (Laten heat of water = 540 cal g^(-1) , specific heat of water = 1 cal g^(-1) ""^(@)C^(-1))

A calorimeter contains 0.2 kg of water at 30^@C . 0.1 kg of water at 60^@C is added to it, the mixture is well stirred and the resulting temperature if found to be 35^@C . The thermal capacity of the calorimeter is