Apiece of candy is burned in a calorimeter raising up the tempature of 500g of water from 21 c to 25 c water has a specific heat of 4.18j/g c how much energy was released by the candy

   The energy  that was  released   by the candy  is calculates using the below formula
Q=Mc delta T

Q= heat energy
m= mass (500g)
C= specific heat  capacity) = 4.18 j/g/c
 delta t =change in temperature = 25- 21 = 4 c

Q=  500 g  x 4.18 j/g/c x 4c = 8360  j

Particle exchange energy though elastic collision , hope this .