Answer : The amount of heat absorbed are, 258485.5 J
Solution :
Formula used :

where,
Q = heat gained = ?
m = mass of water = 650 g
c = specific heat of water =
= final temperature =

= initial temperature =

Now put all the given values in the above formula, we get the final temperature of copper.


Therefore, the amount of heat absorbed are, 258485.5 J