`30 gms` of water at `30^@C` is in a beaker. Which of the following, when added to water, will have greatest cooling effect ? (Specific heat of copper `= 0.1 cal//gm^@C`)

30 g of water at 300^(@)C is in a beaker . Which of the following when added to water , will have greater cooling effect ?( specific heat of copper = 0.1 cal//g^(@)C )

What do you understand by the following statements. Specific heat of mercury is 0.033 cal//gm^@C .

30 gm of ice at 0^@C is placed in a calorimeter of mass 20 gm also at 0^@C . 100 gm of water at 90^@C is poured into the calorimeter. Find the final temperature. (specific heat of calorimeter = 0.4 cal//gm ^@C , Specific heat of water = 0.42 cal//gm ^@C Latent heat of fusion of ice = 80calg )

5 gm of ice at -10^@C are mixed with 20 gm of water at 39^@C . Will whole of the ice melt? If so, what is the final temperature of the mixture? Specific heat capacity of ice = 0.5 cal gm^-1 "^@C^-1 and latent heat of fusion of ice = 80 cal gm^-1 , specific heat capacity of water = 1cal gm^-1 "^@C^-1 .

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 ).

The water equivatent of a 400 g copper calorimeter (specific heat =0.1 "cal"//g^(@)C )