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A copper ball of mass 100 g is at a temp...

A copper ball of mass 100 g is at a temperature T. it is dropped in a copper calorimeter of mass 100 g, filled with 170 g of water at room temperature. Subsequently, the temperature of the system is found to be ` 75^(@)` C. T is given by (given: room temperature = `30^(@)`C , specific heat of copper = 0.1 cal/g`" "^(@)C`)

A

`800^@C`

B

`885^@C`

C

`1250^@C`

D

`825^@C`

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A copper ball of mass 100 gm is at a temperature T. It is dropped in a copper calorimeter of mass 100 gm, filled with 170 gm of water at room temperature. Subsequently, the temperature of the system is found to be 75^(@)C . T is given by : (Given : room temperature = 30^(@)C , specific heat of copper =0.1 cal//gm^(@)C )

100g ice at 0^(@)C is mixed with 100g water at 100^(@)C . The resultant temperature of the mixture is

If 10 g of ice at 0^@C mixes with 10 g of water at 10^@C , then the final temperature t is given by

Water of mass 200 g and temperature 30^(@)C is taken in a copper calorimeter of mass 50g and temperature 30^(@)C . A copper sphere of mass 100g and temperature 100^(@)C is released into it. What will be the maximum temperature of the mixture ? [ c ( water = 1 cal //g.^(@) C , c ( copper ) = 0.1 cal//g.^(@)C ]

A copper calorimeter of mass 1.5 kg has 200 g of water at 25^(@)C . How much water (approx.) at 50^(@)C is required to be poured in the calorimeter, so that the equilibrium temperature attained is 40^(@)C ? (Sp. Heat capacity of copper = 390 J//kg-^(@)C )

50 g of copper is heated to increase its temperature by 10^@C . If the same quantity of heat is given to 10g of water, the rise in its temperature is (specific heat of copper =420J//kg^(@)//C )

In an experiment to determine the specific heat of aluminium, piece of aluminimum weighing 500 g is heated to 100 .^(@) C . It is then quickly transferred into a copper calorimeter of mass 500 g containing 300g of water at 30 .^(@) C . The final temperature of the mixture is found to be 146.8 .^(@) c . If specific heat of copper is 0.093 cal g^-1 .^(@) C^-1 , then the specific heat aluminium is.

75 gm of copper is heated to increase its temperature by 10^@ C . If the same quantity of heat is given to 'm' gm of water, to have same rise in temperature is (specific heat of copper = 420 J//Kg-^@ C ).

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