Define 1 calorie and 1 kilocalorie. What is the use of calorimeter?

Define the calorie.

Define the kilocalorie.

1 calorie = …… J and 1 kilo-calorie= ……….J

Suppose that A, B, C, D represent the energies of 1 erg, 1 Joule, 1 calorie, 1 Kcalorie. What is the correct order of magnitudes of their energies ?

A calorimeter of heat capacity 100 J//K is at room temperature of 30^(@)C . 100g of water at 40^(@)C of specific heat 4200 J//kg-K is poured into the calorimeter. What is the temperature of water is calorimeter?

1 Calorie equals

1 Joule =___ calorie