Calculate the number of kJ of heat necessary to raise the temperature of 60 g of aluminium from `35^oC` to `55^oC.` Molar heat capacity of Al is 24 J `mol^-1K^-1.`

Calculate the nuber of KJ of heat necessary to raise the temperatures of 60g of Al from 35^@C to 55^@C . Molar heat capacity of Al is 24 J mol^-1K^-1

1.22 g of benzoic acid on combustion in a Bomb calorimeter was found to raise the temperature of the calorimeter system from 298 K to 298.5 K. If the heat capacity of calorimeter system is 64.5 kJ, heat of combustion of benzoic acid at constant volume is